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Thomas Alva Edison was widely known as the America's most prolific inventor, even after his death in 1931.[1][2] He held a total of 1,093 U.S. patents (1,084 utility patents and 9 design patents).[3] In 2003, his patent count was exceeded by Japanese inventor Shunpei Yamazaki.[4] On February 26, 2008, Yamazaki's patent count was exceeded by Australian inventor Kia Silverbrook.[5] In 2017, Silverbrook's patent count was exceeded by Yamazaki.

Contents

Worldwide utility patentsEdit

Inventors with 200 or more worldwide utility patents are shown in the following table. While in many cases this is the number of utility patents granted by the United States Patent and Trademark Office, it may include utility patents granted by other countries, as noted by the source references for an inventor.

Inventor # of patents Country Active Main fields of invention Ref
Shunpei Yamazaki 5432   Japan 1976-2019 Thin film transistors, Liquid crystal displays, Solar cells, Flash memory, OLED [6][4][7][8][9][10][11][12][13][14][15][16]
Kia Silverbrook 4747   Australia 1994-2018 Printing, Digital paper, Internet, Electronics, CGI, Chemical, DNA, Lab-on-a-chip, MEMS, Mechanical, VLSI [17][18][4][5][7][8][9][10][11][12][13][14][15]
Lowell L. Wood, Jr. 1855   USA 1977-2019 Various [19][20][15]
Roderick A. Hyde 1756   USA 2001-2019 Various [21][22][15]
Kangguo Cheng 1752   USA 2004-2019 Semiconductor device fabrication, Semiconductor memory, Semiconductor device [23][24]
Jun Koyama 1373   Japan 1991-2019 Thin film transistors, Liquid crystal displays, OLED [25][26]
Gurtej Sandhu 1316   India 1991-2019 Thin film processes and materials, VLSI, Semiconductor device fabrication [27][28][7][8][9][16]
Paul Lapstun 1288   Australia 2000-2018 Printing, Digital paper, Internet, Electronics, CGI, VLSI [29][30][4][9][10][11][12][13][14]
Clarence T. Tegreene 1155   USA 2000-2019 Various [31][32]
Leonard Forbes 1106   Canada 1991-2019 Semiconductor Memories, CCDs, Thin film processes and materials, VLSI [33][34][4][8][9][10][12]
Thomas Edison 1084   USA 1847(b)-1931(d) Electric power, Lighting, Batteries, Phonograph, Cement, Telegraphy, Mining [2][3][4][5][35][36]
Edward K. Y. Jung 1054   USA 1996-2019 Various [37][38][15]
Shou-Shan Fan 1014   China 2006-2019 Carbon nanotubes and their applications [39][40]
Donald E. Weder 1000   USA 1976-2017 Florist supplies [41][42][4][7][8][9][16]
George Albert Lyon 993   Canada 1882(b)-1961(d) Automotive, Stainless steel products [4][43]
Jay S. Walker 958   USA 1998-2019 Gaming machines [44][45][9][14]
John F. O'Connor 949   USA 1864(b)-1938(d) Railway draft gearing [4][46]
Michael J. Sullivan 949   USA 1977-2019 Golf balls [47][48]
Rick Allen Hamilton II 928   USA 1999-2019 Various [49][50][15]
Melvin De Groote 925   USA 1895(b)-1963(d) Chemical de-emulsifiers [2][4]
Jordin T. Kare 900   USA 1992-2019 Various [51][52]
Francis H. Richards 894   USA 1850(b)-19??(d) Mechanical, automation [2][4]
Ahmadreza Rofougaran 850   USA 2002-2019 Radio Frequency Integrated Circuits [53][54]
Nathan Myhrvold 848   USA 1994-2019 Various [55][56]
Mark Malamud 821   USA 1997-2019 Various [57][58][15]
Robert W. Lord 808   USA 2003-2019 Various [59][60]
Royce A. Levien 803   USA 1997-2019 Various [61][62][15]
Muriel Y. Ishikawa 790   USA 2002-2019 Various [63][64][65]
William H. Eby 780   USA 1994-2019 Transgenic soybeans [66][67]
Warren Farnworth 772   USA 1990-2017 Semiconductor packaging [68][69][7][8][9]
Salman Akram 757   USA 1995-2019 Semiconductor packaging [70][71][7][8][9]
Carleton Ellis 753   USA 1876(b)-1941(d) Margarine, Polyester, Anti-knock gasoline, Paint stripper [46][72]
Jeyhan Karaoguz 747   USA 1996-2019 Wireless communications, Computer networks [73][74]
Hideo Ando 729   Japan 1983-2017 Optical recording [75][76][14]
George Spector 722   USA 1976-1998 Gadgets, Toys [77][78][7][8]
Austin L. Gurney 714   USA 1999-2019 Proteins, Antibodies [79][80][10][11]
Elihu Thomson 696   UK 1853(b)-1937(d) Electric power, Arc lamp, Electric motors, Lightning arrester, Arc welder [2][46]
Tetsujiro Kondo 695   Japan 1987-2018 Signal processing, Image processing [81][82]
Ali Khakifirooz 695   USA 2011-2019 Integrated Circuits, CMOS, Semiconductor device fabrication [83][84]
William I. Wood 653   USA 1981-2016 Proteins, Antibodies [85][86][10][11]
Simon R. Walmsley 651   Australia 1995-2015 Printing, Electronics, VLSI, Cryptography [87][88][13][14]
Bruce B. Doris 643   USA 1995-2019 Integrated Circuits, CMOS, DRAM, Semiconductor device fabrication [89][90]
Audrey D. Goddard 625   USA 1997-2019 Proteins, Antibodies [91][92][10][11]
John M. Santosuosso 625   USA 2001-2019 Various [93][94]
Eric C. Leuthardt 612   USA 2006-2019 Medical devices [95][96]
Edward J. Nowak 610   USA 1979-2019 Semiconductor device fabrication, Semiconductor memory, Semiconductor device [97][98]
Jerome Lemelson 606   USA 1923(b)-1997(d) Toys, Industrial robots, Cordless telephones, Fax machines, Videocassette recorders [99][2][16][100]
Tadahiro Ohmi 597   Japan 1981-2018 Thin film processes and materials, Semiconductor device fabrication [101][102]
Kie Y Ahn 596   USA 1976-2018 Thin film processes and materials, VLSI, Semiconductor device fabrication [103][104]
Béla Barényi 595   Austria 1907(b)-1997(d) Passive safety in automobiles [105][106]
Paul J. Godowski 579   USA 1994-2014 Proteins, Antibodies [107][108][10][11]
Devendra K. Sadana 574   India 1983-2019 Solar cells, OLED, Integrated Circuits, CMOS, DRAM, LEDs [109][110]
Clifford A. Pickover 574   USA 1992-2019 Various [111][112]
Artur Fischer 570   Germany 1976-2002 Fasteners, Construction toys [113][114][115]
Louis L. Hsu 551   USA 1988-2016 Various [116][117]
Chih-Chao Yang 550   USA 2003-2019 Integrated Circuits [118][119]
Jeffrey P. Gambino 541   USA 1992-2019 MEMS, CMOS, BiCMOS, DRAM, Image Sensors, RF, Biosensors, 3D Integrated Circuits [120][121]
Edwin H. Land 535   USA 1909(b)-1991(d) Instant photography, Polarizing film [122][123]
Victoria Y. H. Wood 532   USA 2009-2019 Various [124][125]
Henri Dreyfus 524    Switzerland 1882(b)-1944(d) Polymers, Synthetic fibers, Dyes [126][127]
Clyde C. Farmer 513   USA 18??(b)-19??(d) Railway air brakes [128][46][129]
Heinz Focke 512   Germany 1976-2013 Cigarette packaging [130][131][7]
Mark I. Gardner 511   USA 1994-2010 Consumer electronics, Energy, Computers, Semiconductors, Physics [132][133][7][8]
Ravi K. Arimilli 508   India 1992-2019 Computer architecture, Semiconductor memory, Cache coherence, Symmetric multiprocessing [134][135]
Anthony K. Stamper 506   USA 1998-2019 MEMS, CMOS, BiCMOS, Silicon-germanium [136][137]
Louis H. Morin 503   USA 18??(b)-19??(d) Fasteners, Locks, Bobbins [138][129]
Ronald S. Cok 503   USA 1986-2019 OLED displays; image processing [139][140]
Tobin A. King 501   Australia 2000-2018 Printing, Digital paper, Mechanical [141][142]
Gregory J. Boss 495   USA 2008-2019 Various [143][144]
Belgacem Haba 494   Algeria 1991-2019 Semiconductor manufacturing [145][146]
Robert S. Langer 486   USA 1983-2019 Biotechnology, Drug delivery, Tissue engineering [147][148]
James M. Hart 482   USA 1988-2019 Motor vehicle transmission [149][150]
Jack A. Mandelman 481   USA 1987-2014 Various [151][152]
Kai-Li Jiang 476   China 2006-2019 Carbon nanotubes and their applications [153][154]
Akira Nakazawa 458   Australia 1980-2018 Printing, Mechanical [155][156]
Ruilong Xie 454   USA 2013-2019 Semiconductor device, CMOS, Semiconductor device fabrication [157][158]
Eberhard Ammermann 451   Germany 1979-2015 Fungicides [159][160][16]
Lisa Seacat DeLuca 451   USA 2009-2019 Various [161][162]
Thomas E. Murray 449   USA 1860(b)-1929(d) Electrical, HVAC, Wheels, Metal working, Light dimmer [163][164]
Hongyong Zhang 440   Japan 1993-2016 Thin film transistors, Liquid crystal displays [165][166]
John L. Melanson 436   USA 1978-2019 Integrated circuits, semiconductors, mixed-signal products, signal processing, audio and voice components, hearing aids, LED lighting, and motor control [167][168]
Scott H. Wittkopp 432   USA 2001-2017 Motor vehicle transmission [169][170][14]
Brian M. O'Connell 426   USA 2009-2019 Various [171][172]
Frederick A. Ware 423   USA 1981-2019 Chip design [173][174]
John Hays Hammond, Jr. 417   USA 1888(b)-1965(d) Radio control, Radio communications, Torpedoes [175][176]
Hossein Eslambolchi 414   USA 1993-2018 Telecommunications, Network intelligence, information Technology, communications technology [177][178]
Vincent J. Zimmer 413   USA 1999-2019 Computer software and firmware [179][180]
Wilhelm Brandes 411   Germany 1976-2010 Fungicides [181][182]
Cary L. Bates 411   USA 1994-2019 Programming tools, DBX, Memory debuggers [183][184][185]
Xuemin (Sherman) Chen 410   USA 1997-2018 Computer networks, Integrated Circuits, Signal Processing [186][187][188][189][190]
Stanford R. Ovshinsky 400   USA 1922(b)-2012(d) Batteries, Solar cells, Liquid crystal displays, Hydrogen fuel cells, Computer data storage [191][192][193]
Brent A. Anderson 395   USA 2001-2019 Semiconductor device fabrication, Semiconductor memory, Semiconductor device [194][195]
Josef Theurer 388   Austria 1976-2016 Railroad maintenance machines [196][197][16]
David V. Horak 387   USA 1992-2018 Various [198][199]
Sarbajit K. Rakshit 384   India 2013-2019 Various [200][201]
Paul W. Dent 382   USA 1984-2019 Wireless communications [202][203]
George P. Liang 379   China 1983-2018 Gas turbine cooling [204][205]
Wael W. Diab 378   USA 2003-2018 Computer networks [206][207]
Hans-Joachim Santel 377   Germany 1986-2013 Herbicides, Pesticides, Organic chemistry [208][209][16]
Gisela Lorenz 374   Germany 1990-2015 Fungicides, Organic chemistry [210][211][16]
Garry R. Jackson 367   Australia 2001-2016 Printing, Mechanical [212][213]
Pouya Hashemi 364   USA 2013-2019 Semiconductor, VLSI, CMOS logic and memory, cognitive [214][215]
George Westinghouse 361   USA 1846(b)-1914(d) Electric power, Electricity meter, Railway air brake, Steam engines [216][217][218]
Jeffrey E. Stahmann 357   USA 1994-2019 Medical devices [219][220]
William Daniel Hillis 357   USA 1986-2019 Various [221][222]
Norman M. Berry 355   Australia 2006-2018 Printing, Mechanical [223][224]
Mark W. Kroll 354   USA 1987-2019 Implantable medical devices [225][226][227]
Robert R. Schmidt 350   Germany 1971-2005 Herbicides, Fungicides, Organic chemistry [228][229]
Lawrence A. Clevenger 347   USA 1996-2019 Semiconductor, Cognitive, Memory, Security, Analytics [230][231]
Carl J. Radens 342   USA 1994-2019 Integrated Circuits, CMOS, DRAM, Semiconductor device fabrication [232][233]
Bengt Lindoff 339   Sweden 2000-2019 Wireless communications [234][235]
Ajith K. Kumar 334   India 1984-2019 Electric Power, Energy Management, Rail Transportation, Mining [236][237]
Elizabeth A. Sweeney 329   USA 2010-2019 Various [238][239]
Esmael H. Dinan 327   USA 2006-2019 Communication networks [240][241]
Keith R. Walker 326   Saudi Arabia 2003-2019 Various [242][243]
Hanson S. Gifford III 326   USA 1986-2019 Medical devices [244][245]
Dean L. Kamen 326   USA 1979-2019 Battery-powered electric vehicles, Medical devices, Stirling engines, Water purification, Wheelchairs [246][247]
Timothy J. Slegel 316   USA 1993-2019 Computer architecture [248][249]
Daniel J. Winarski 316   USA 1982-2019 Various [250][251]
Liang Liu 316   China 2005-2019 Carbon nanotubes and their applications [252][253]
Steven L. Teig 314   USA 1995-2018 Integrated Circuits [254][255]
Philip D. Nguyen 312   USA 1992-2019 Oilfield [256][257]
Frank J. Viola 312   USA 1981-2019 Surgical instruments, Medical devices [258][259]
Victor S. Moore 310   USA 1982-2019 Various [260][261]
Kulvir S. Bhogal 310   USA 2003-2019 Various [262][263]
Victoria Smith 308   USA 2006-2017 Proteins, Antibodies [264][265]
Michael (S.) Tsirkin 300   Israel 2012-2019 Virtual Machines, I/O Data Processing, Computer Graphics, Power Management, Computer Memory, Computer Networks, Distributed Data Processing, Fault Recovery, Data Structures [266][267]
Robert G. LeTourneau 299   USA 1888(b)-1969(d) Earthworks (engineering), Heavy Equipment, Industrial Machinery [268][269]
Assaf Natanzon 292   Israel 2007-2019 Storage Systems, Data Protection [270][271]
William R. Tonti 291   USA 1994-2016 Integrated Circuits, CMOS, DRAM, Semiconductor device fabrication [272][273]
Zine-Eddine Boutaghou 290   Algeria 1994-2018 Hard disk drive [274][275]
Adam Heller 284   Romania 1968-2019 Solar cells, Glucose meters, Lasers [276][277][278]
Jeffrey W. Sleight 283   USA 1998-2019 Integrated Circuits, CMOS, Semiconductor device fabrication [279][280]
Brent Keeth 280   USA 1994-2019 Integrated Circuits, CMOS, DRAM [281][282]
Madhusudan K. Iyengar 277   India 2005-2019 Chip Cooling [283][284]
Cyprian E. Uzoh 276   Nigeria 1998-2019 Semiconductor processing [285][286]
Daniel C. Edelstein 274   USA 1991-2019 Semiconductor manufacturing [287][288]
Michael A. Rothman 273   USA 2001-2019 Computer software and firmware [289][290]
Hartley Owen 267   USA 1976-2010 Fluid catalytic cracking [291][292]
Bran Ferren 259   USA 1986-2019 Computers, Consumer Electronics, Electro-Optical Systems, Medical, User Interfaces, Automotive, Vehicles & Transportation [293][294]
Yoshihiro Kikuchi 257   Japan 1994-2018 Video processing [295][296]
Christopher J. Dawson 257   USA 2006-2019 Various [297][298]
Takeshi Chujoh 256   Japan 1995-2019 Video processing [299][300]
Rajiv V. Joshi 255   USA 1986-2019 Electronics, analytics [301][302]
Harry (Tom) Graef 254   USA 1976-2019 Business machines, automation [303][304]
Craig E. Hampel 250   USA 1996-2019 Integrated Circuits [305][306]
Dorin Comaniciu 249   USA 2003-2019 Machine Intelligence, Medical Imaging, Image-Guided Surgery, Computer Vision [307][308]
Nobuyuki Taniguchi 245   Japan 1979-2015 Cameras [309][310]
Sandeep R. Patil 244   India 2008-2019 Various [311][312]
Johnny M. Shieh 242   USA 1996-2018 Various [313][314]
Andrew J. Ouderkirk 242   USA 1989-2019 LEDs, Optic Films [315][316]
James E. Bostick 241   USA 1993-2019 Various [317][318]
Philip S. Yu 240   USA 1982-2018 Various [319][320]
Imad Libbus 237   USA 2007-2019 Medical devices [321][322]
Louis B. Rosenberg 232   USA 1995-2019 Augmented Reality, Virtual Reality, HCI [323][324]
Gerald F. McBrearty 231   USA 1997-2018 Various [325][326]
Zvi Or-Bach 231   USA 1982-2019 Various [327][328]
Thomas J. Kennedy III 228   USA 1992-2018 Sporting Goods, Wind Turbines, Biotechnology [329][330]
Michael L. Fripp 228   USA 2004-2019 Oilfield [331][332]
John M. Ganci 227   USA 2009-2019 Various [333][334]
Mark A. Horowitz 226   USA 1993-2019 Integrated Circuits [335][336]
James R. Kraemer 224   USA 2008-2019 Various [337][338]
Dureseti Chidambarrao 221   USA 1995-2017 Integrated Circuits, CMOS, Semiconductor device fabrication [339][340]
Paul Ian Mackey 220   Australia 2008-2016 Printing, Mechanical [341][342]
James W. Seaman 220   USA 2005-2019 Various [343][344]
Seung H. Kang 217   USA 2002-2019 Semiconductor device technologies, MRAM, spintronics, and memory circuit design [345][346]
Jonathan J. Hull 215   USA 1987-2019 Various [347][348]
Stephen G. Perlman 214   USA 1989-2019 Wireless communications, Cloud gaming, Video compression [349][350]
Mukta Ghate Farooq 213   India 1993-2019 Semiconductor materials and structures, packaging technology, and 3-dimensional silicon integration [351][352]
Sebastian T. Ventrone 210   USA 1989-2019 Semiconductor, Logic, Architecture [353][354]
Gregory McAvoy 208   Ireland 2003-2017 Printing, MEMS [355][356]
Hiroshi (You) Yoshioka 205   Japan 1997-2015 Cameras [357][358]
Patrick B. Usoro 205   USA 1999-2016 Motor vehicle transmission, Hybrid Powertrains, Vehicle Thermal Management [359][360]
Rajarshi Gupta 205   India 2004-2019 Wireless networking, Machine Learning, Cybersecurity [361][362]
Sadeg M. Faris 202   Libya 1979-2018 Various [363][364]

This table is usually updated every Tuesday evening in US Eastern time, and is current as of May 14, 2019. The columns are defined as follows:

  • Inventor: The name of the inventor.
  • # of patents: This is the number of utility patents that have been issued. Only utility patents (or the international equivalent) are listed, as a utility patent is a patent for an invention. Not all patents are for inventions. Other patent types include: design patents for the ornamental design of an object; plant patents for plant varieties; and reissue patents, where a correction is made to an already granted patent. This list does not include patent applications (patents pending) as there is no guarantee that a patent application actually describes a novel invention until the patent is granted.
  • Country: This is the country of birth or upbringing of the inventor, where known. If unknown, this is the country of residence identified in the inventor's patent filings.
  • Active: The first and last year in which an inventor received a patent issuance, except when activity was prior to digital records, in which case year of birth (b) and death (d) may be substituted. If an inventor's first year is 1976 or a few years after, there may be activity prior to this; earlier dates are not present in the primary source, and would require a secondary source.
  • Main fields of invention: These are the main areas that the inventor is or was active in.

Threshold for inclusionEdit

As the average number of patents per inventor is around 3, some sources define prolific inventors as five times above the average (in terms of patents), leading to a threshold of 15 patents.[365] However, this table currently has an arbitrary cut-off limit for inclusion of 200 patents. This is purely for practical reasons – there are tens of thousands of inventors with more than 15 patents. The threshold of 200 patents means that some famous prolific inventors such as Nikola Tesla are not included in this list, as Tesla had 111 patents.[366][367]

Significance of inventionsEdit

This table is a sortable list of the most prolific inventors as measured by utility patents granted. It does not include other types of invention, such as inventions that were never applied for nor granted, for which there is no known source. Nor does the table attempt to measure the significance of an inventor and their inventions. The significance of inventions is often not apparent until many decades after the invention has been made. For recent inventors, it is not yet possible to determine their place in history.

The common symbol for inventiveness, the light bulb, is an example. The first incandescent light bulb was invented by British chemist Sir Humphry Davy in 1802. Many subsequent inventors improved Davy's invention prior to the successful commercialization of electric lighting by Thomas Edison in 1880, 78 years later. Electric lighting continued to be developed. Edison's carbon filament light bulb was made obsolete by the tungsten filament light bulb, invented in 1904 by Sándor Just and Franjo Hanaman. It is this that forms the popular conception of a light bulb, though there are other major forms of lighting. The principle of fluorescent lights was known since 1845, and various inventors, including Edison and Nikola Tesla worked on them without commercial success. Various improvements were made by many other inventors, until General Electric introduced "fluorescent lumiline lamps" commercially in 1938, first available to the public at the 1939 World's Fair. LED lamps also have a long history, with the first light-emitting diode (LED) invented in 1927 by Oleg Losev. LEDs were initially of low brightness, and have been used as indicator lamps and seven-segment displays since 1968. It wasn't until the development of high efficiency blue LEDs by Shuji Nakamura in the 1980s that white LEDs for lighting applications became practical. Although higher cost than incandescent light bulbs, LEDs have higher efficiency and longer life and may finally displace light bulbs in general lighting applications. In each case, more than 50 years passed between the initial invention and commercial success in general lighting applications.

Various published listsEdit

Rankings of prolific inventors have been published at various times. However, until the patent records were digitized, these lists were very tedious to prepare, as many thousands of patent records had to be checked manually. Even after digitization, it is still not a simple process. While the USPTO keeps statistics for annual rankings of inventions assigned to companies, it no longer publishes rankings of individual inventors. The last such list was published by the USPTO in 1998.[16] Also, patents predating 1976 have not yet been digitized in the USPTO records. This means that patents before 1976 will not be included in a USPTO search by inventor name, and the number of patents granted before 1976 must be added to current searches.

Popular Science (1936)Edit

In January 1936, Popular Science published a list of the "most prolific living inventors to be found in America today".[46]

Rank Inventor U.S. Patents
1 John F. O'Connor 949
2 Elihu Thomson 696
3 Carleton Ellis 648
4 Henry A. Wise Wood 434
5 John Hays Hammond Jr. 360
6 Clyde C. Farmer 344
7 Ethan I. Dodds 321
8 Edward Weston 309

Thomas Edison was not included in the list, as he died in 1931, five years earlier.

Time Magazine (2000)Edit

On December 4, 2000, Time Magazine published a list of the "top five inventors".[2]

Rank Inventor U.S. Patents
1 Thomas Edison 1,093
2 Melvin De Groote 925
3 Francis H. Richards 894
4 Elihu Thomson 696
5 Jerome Lemelson 554

This list only included U.S. inventors, so omitted Canadian inventor George Albert Lyon, with 993 U.S. patents at the time of publication, Japanese inventor Shunpei Yamazaki, with 745 U.S. patents, and Béla Barényi, with 595 German patents. Also omitted were John F. O'Connor with 949 U.S. patents, and Carleton Ellis, with 753 U.S. patents at the time of publication.

USA Today (2005)Edit

On December 13, 2005, USA Today published a list of "the top 10 living U.S. patent holders":[7]

Rank Inventor U.S. Patents
1 Shunpei Yamazaki 1,432
2 Donald Weder 1,322
3 Kia Silverbrook 810
4 George Spector 723
5 Gurtej Sandhu 576
6 Warren Farnworth 547
7 Salman Akram 527
8 Mark Gardner 512
9 Heinz Focke 508
10 Joseph Straeter 477

This research was performed by ipIQ of Chicago (now "The Patent Board"[368]) and 1790 Analytics[369] of New Jersey. This list only considered living inventors, and thus did not include such prolific inventors as Thomas Edison, Melvin De Groote, and Elihu Thomson. This list included design patents, which are not patents for inventions.

Condé Nast Portfolio (2007)Edit

On October 15, 2007, Condé Nast Portfolio Magazine published a list[8] of "the world's most prolific inventors alive":

Rank Inventor U.S. Patents
1 Shunpei Yamazaki 1,811
2 Kia Silverbrook 1,646
3 Donald Weder 1,350
4 George Spector 722
5 Gurtej Sandhu 674
6 Leonard Forbes 671
7 Warren Farnworth 635
8 Salman Akram 612
9 Mark Gardner 515
10 Joseph Straeter 485

This research was performed by The Patent Board,[368] a Chicago patent research and advisory firm. As with the USA Today list, the Portfolio list only considered living inventors, and thus did not include such prolific inventors as Thomas Edison. This list also included design patents, which are not patents for inventions.

Business Insider (2011)Edit

On May 6, 2011, Business Insider published an article titled: "The Ten Greatest Inventors In The Modern Era"[4] containing the following list:

Rank Inventor U.S. Patents
1 Kia Silverbrook 3,847
2 Shunpei Yamazaki 2,061
3 Thomas Edison 1,084
4 George Albert Lyon 993
5 Paul Lapstun 969
6 Donald Weder 951
7 John F. O'Connor 949
8 Leonard Forbes 948
9 Melvin De Groote 925
10 Francis H. Richards 894

This list included living and dead inventors, and only included granted utility patents (patents for inventions).

Strutpatent.com (2012)Edit

Strutpatent.com publishes a list of the "Top 10 Inventors"[9] listing inventors ranked by US patents (of all types) issued since 1990:

Rank Inventor U.S. Patents
1 Kia Silverbrook 4,279
2 Shunpei Yamazaki 1,664
3 Donald Weder 1,310
4 Paul Lapstun 1,098
5 Leonard Forbes 959
6 Gurtej Sandhu 728
7 Warren Farnworth 685
8 Salman Akram 653
9 Jay Walker 644
10 Chang-Hwan Hwang 634

This list included only patents granted since 1990, and includes design patents as well as utility patents.

Annual lists (2007–2012)Edit

Strutpatent.com publishes weekly, monthly, and annual lists of the top ten categories, inventors and assignees of US patents since 2007. These lists include all patent types, not just patents for inventions (utility patents).

The top ten inventors of US patents for 2007:[10]

Rank Inventor U.S. Patents
1 Kia Silverbrook 502
2 Audrey Goddard 232
3 William I. Wood 232
4 Austin L. Gurney 225
5 Chang-Hwan Hwang 203
6 Paul J. Godowski 193
7 Shunpei Yamazaki 139
8 Paul Lapstun 129
9 Leonard Forbes 120
10 Victoria Smith 112

The top ten inventors of US patents for 2008:[11]

Rank Inventor U.S. Patents
1 Kia Silverbrook 576
2 Chang-Hwan Hwang 198
3 Audrey Goddard 168
4 Austin L. Gurney 167
5 William I. Wood 166
6 Paul J. Godowski 153
7 Shunpei Yamazaki 143
8 Paul Lapstun 137
9 Chang-Soo Lee 129
10 Victoria Smith 122

The top ten inventors of US patents for 2009:[12]

Rank Inventor U.S. Patents
1 Kia Silverbrook 444
2 Shunpei Yamazaki 137
3 Paul Lapstun 113
4 Bartley K. Andre 92
5 Daniele De Iuliis 92
6 Jonathan Ive 92
7 Matthew Rohrbach 92
8 Richard P. Howarth 91
9 Duncan Robert Kerr 91
10 Leonard Forbes 91

The top ten inventors of US patents for 2010:[13]

Rank Inventor U.S. Patents
1 Kia Silverbrook 709
2 Paul Lapstun 191
3 Shunpei Yamazaki 162
4 Simon Walmsley 115
5 Bartley K. Andre 114
6 Matthew Rohrbach 109
7 Richard P. Howarth 108
8 Jonathan Ive 108
9 Duncan Robert Kerr 108
10 Daniel J. Coster 106

The top ten inventors of US patents for 2011:[14]

Rank Inventor U.S. Patents
1 Kia Silverbrook 754
2 Paul Lapstun 268
3 Shunpei Yamazaki 163
4 Hideo Ando 162
5 You Yoshioka 153
6 Scott H. Wittkopp 126
7 James M. Hart 125
8 Edward Jung 112
9 Simon Walmsley 112
10 Jay S. Walker 99

The top ten inventors of US patents for 2012:[15]

Rank Inventor U.S. Patents
1 Kia Silverbrook 220
2 Edward Jung 180
3 Shunpei Yamazaki 172
4 Lowell Wood 169
5 Roderick Hyde 140
6 Bin Li 124
7 Royce Levien 122
8 Mark Malamud 119
9 Shunpei Yamazaki 118
10 John Rinaldo 117

This table omitted Rick Allen Hamilton II. The USPTO database shows Hamilton was an inventor or co-inventor of 128 US patents granted in 2012,[370] which would place Hamilton at 6th rank for 2012.

Differences between listsEdit

Differences in patent numbers between the various lists are due to several reasons:

  • The lists were created on different dates. As many of the inventors in the lists are still active, the number of patents they hold are increasing.
  • While the U.S. Patent and Trademark Office (USPTO) is the primary source for U.S. patent information, only patents issued since 1976 can be electronically searched by the inventor's name at the USPTO website. For some of the listed inventors, such as Thomas Edison, all of their patents predate 1976, so other sources must be used.
  • Often entities list the worldwide total number of patents that they hold. This is not the same as the number of inventions, as a patent in one country may be for the same invention as a patent in another country. The set of patents covering a single invention in different countries is a Patent family.
  • The Time, USA Today and Portfolio lists show the total number of U.S. patents, including patents for designs (Design patents) as well as patents for inventions (Utility patents).
  • The annual lists from strutpatent.com list only those patents issued in the particular year to the inventor, not all of the inventor's patents.

See alsoEdit

ReferencesEdit

  1. ^ Thomas Alva Edison Biography at Rutgers University
  2. ^ a b c d e f g Man-Made Marvels Time Magazine, Dec 4, 2000
  3. ^ a b List of Edison patents
  4. ^ a b c d e f g h i j k l The Ten Greatest Inventors In The Modern Era Business Insider, 6 May 2011
  5. ^ a b c The True Inventor Basson-Booyens website
  6. ^ US Patents of Shunpei Yamazaki
  7. ^ a b c d e f g h i j You really can find identities of top patent holders USA Today, Dec 13, 2005
  8. ^ a b c d e f g h i j Masters of invention Portfolio, October 15, 2007
  9. ^ a b c d e f g h i j Strutpatent list of the top 10 inventors since 1990
  10. ^ a b c d e f g h i List of the top ten US patent grantees for 2007 StrutPatent.com website
  11. ^ a b c d e f g h List of the top ten US patent grantees for 2008 StrutPatent.com website
  12. ^ a b c d e List of the top ten US patent grantees for 2009 StrutPatent.com website
  13. ^ a b c d e List of the top ten US patent grantees for 2010 StrutPatent.com website
  14. ^ a b c d e f g h List of the top ten US patent grantees for 2011 StrutPatent.com website
  15. ^ a b c d e f g h i List of the top ten US patent grantees for 2012 StrutPatent.com website
  16. ^ a b c d e f g h i USPTO publication: Prolific Inventors Receiving Utility Patents 1988-1997
  17. ^ US Patents of Kia Silverbrook
  18. ^ Worldwide Patents of Kia Silverbrook
  19. ^ US Patents of Lowell L. Wood, Jr.
  20. ^ Worldwide Patents of Lowell L. Wood, Jr.
  21. ^ US Patents of Roderick A. Hyde
  22. ^ Worldwide Patents of Roderick A. Hyde
  23. ^ US Patents of Kangguo Cheng
  24. ^ Worldwide Patents of Kangguo Cheng
  25. ^ US Patents of Jun Koyama
  26. ^ Worldwide Patents of Jun Koyama
  27. ^ US Patents of Gurtej Sandhu
  28. ^ Worldwide Patents of Gurtej Sandhu
  29. ^ US Patents of Paul Lapstun
  30. ^ Worldwide Patents of Paul Lapstun
  31. ^ US Patents of Clarence T. Tegreene
  32. ^ Worldwide Patents of Clarence T. Tegreene
  33. ^ US Patents of Leonard Forbes
  34. ^ Worldwide Patents of Leonard Forbes
  35. ^ Edison's Foreign Patents
  36. ^ The Complete Thomas Alva Edison U.S. Patent Collection
  37. ^ US Patents of Edward K. Y. Jung
  38. ^ Worldwide Patents of Edward K. Y. Jung
  39. ^ US Patents of Shou-Shan Fan
  40. ^ Worldwide Patents of Shou-Shan Fan
  41. ^ US Patents of Donald E. Weder
  42. ^ Worldwide Patents of Donald E. Weder
  43. ^ Archived Boliven Patents by George Albert Lyon(s)
  44. ^ US Patents of Jay S. Walker
  45. ^ Worldwide Patents of Jay S. Walker
  46. ^ US Patents of Michael J. Sullivan
  47. ^ Worldwide Patents of Michael J. Sullivan
  48. ^ US Patents of Rick Allen Hamilton II
  49. ^ Worldwide Patents of Rick Allen Hamilton II
  50. ^ US Patents of Jordin T. Kare
  51. ^ Worldwide Patents of Jordin T. Kare
  52. ^ US Patents of Ahmadreza Rofougaran
  53. ^ Worldwide Patents of Ahmadreza Rofougaran
  54. ^ US Patents of Nathan Myhrvold
  55. ^ Worldwide Patents of Nathan Myhrvold
  56. ^ US Patents of Mark Malamud
  57. ^ Worldwide Patents of Mark Malamud
  58. ^ US Patents of Robert W. Lord
  59. ^ Worldwide Patents of Robert W. Lord
  60. ^ US Patents of Royce A. Levien
  61. ^ Worldwide Patents of Royce A. Levien
  62. ^ US Patents of Muriel Y. Ishikawa
  63. ^ Worldwide Patents of Muriel Y. Ishikawa
  64. ^ Bio of Muriel Y. Ishikawa
  65. ^ US Patents of William H. Eby
  66. ^ Worldwide Patents of William H. Eby
  67. ^ US Patents of Warren Farnworth
  68. ^ Worldwide Patents of Warren Farnworth
  69. ^ US Patents of Salman Akram
  70. ^ Worldwide Patents of Salman Akram
  71. ^ B. Zorina Khan, The Democratization of Invention: Patents and Copyrights in American Economic Development, 1790-1920 (Cambridge University Press, 2005) pp209-210
  72. ^ US Patents of Jeyhan Karaoguz
  73. ^ Worldwide Patents of Jeyhan Karaoguz
  74. ^ US Patents of Hideo Ando
  75. ^ Worldwide Patents of Hideo Ando
  76. ^ US Patents of George Spector
  77. ^ Worldwide Patents of George Spector
  78. ^ US Patents of Austin L. Gurney
  79. ^ Worldwide Patents of Austin L. Gurney
  80. ^ US Patents of Tetsujiro Kondo
  81. ^ Worldwide Patents of Tetsujiro Kondo
  82. ^ US Patents of Ali Khakifirooz
  83. ^ Worldwide Patents of Ali Khakifirooz
  84. ^ US Patents of William I. Wood
  85. ^ Worldwide Patents of William I. Wood
  86. ^ US Patents of Simon R. Walmsley
  87. ^ Worldwide Patents of Simon R. Walmsley
  88. ^ US Patents of Bruce B. Doris
  89. ^ Worldwide Patents of Bruce B. Doris
  90. ^ US Patents of Audrey D. Goddard
  91. ^ Worldwide Patents of Audrey D. Goddard
  92. ^ US Patents of John M. Santosuosso
  93. ^ Worldwide Patents of John M. Santosuosso
  94. ^ US Patents of Eric C. Leuthardt
  95. ^ Worldwide Patents of Eric C. Leuthardt
  96. ^ US Patents of Edward J. Nowak
  97. ^ Worldwide Patents of Edward J. Nowak
  98. ^ Worldwide Patents of Jerome Lemelson
  99. ^ The Lemelson Center for the Study of Invention & Innovation web site, Jerome Lemelson's Patents.
  100. ^ US Patents of Tadahiro Ohmi
  101. ^ Worldwide Patents of Tadahiro Ohmi
  102. ^ US Patents of Kie Y Ahn
  103. ^ Worldwide Patents of Kie Y Ahn
  104. ^ Worldwide Patents of Béla Barényi
  105. ^ German Patents of Béla Barényi
  106. ^ US Patents of Paul J. Godowski
  107. ^ Worldwide Patents of Paul J. Godowski
  108. ^ US Patents of Devendra K. Sadana
  109. ^ Worldwide Patents of Devendra K. Sadana
  110. ^ US Patents of Clifford A. Pickover
  111. ^ Worldwide Patents of Clifford A. Pickover
  112. ^ US Patents of Artur Fischer
  113. ^ Worldwide Patents of Artur Fischer
  114. ^ Reference to German patents of Artur Fischer
  115. ^ US Patents of Louis L. Hsu
  116. ^ Worldwide Patents of Louis L. Hsu
  117. ^ US Patents of Chih-Chao Yang
  118. ^ Worldwide Patents of Chih-Chao Yang
  119. ^ US Patents of Jeffrey P. Gambino
  120. ^ Worldwide Patents of Jeffrey P. Gambino
  121. ^ Worldwide Patents of Edwin H. Land
  122. ^ Victor K. McElheny, Insisting on the impossible: The Life of Edwin Land (Perseus Books, 1998)
  123. ^ US Patents of Victoria Y. H. Wood
  124. ^ Worldwide Patents of Victoria Y. H. Wood
  125. ^ Worldwide Patents of Henri Dreyfus
  126. ^ Camille and Henry Dreyfus Foundation
  127. ^ Worldwide Patents of Clyde C. Farmer
  128. ^ a b Archived Boliven.com website
  129. ^ US Patents of Heinz Focke
  130. ^ Worldwide Patents of Heinz Focke
  131. ^ US Patents of Mark I. Gardner
  132. ^ Worldwide Patents of Mark I. Gardner
  133. ^ US Patents of Ravi K. Arimilli
  134. ^ Worldwide Patents of Ravi K. Arimilli
  135. ^ US Patents of Anthony K. Stamper
  136. ^ Worldwide Patents of Anthony K. Stamper
  137. ^ Worldwide Patents of Louis H. Morin
  138. ^ US Patents of Ronald S. Cok
  139. ^ Worldwide Patents of Ronald S. Cok
  140. ^ US Patents of Tobin A. King
  141. ^ Worldwide Patents of Tobin A. King
  142. ^ US Patents of Gregory J. Boss
  143. ^ Worldwide Patents of Gregory J. Boss
  144. ^ US Patents of Belgacem Haba
  145. ^ Worldwide Patents of Belgacem Haba
  146. ^ US Patents of Robert S. Langer
  147. ^ Worldwide Patents of Robert S. Langer
  148. ^ US Patents of James M. Hart
  149. ^ Worldwide Patents of James M. Hart
  150. ^ US Patents of Jack A. Mandelman
  151. ^ Worldwide Patents of Jack A. Mandelman
  152. ^ US Patents of Kai-Li Jiang
  153. ^ Worldwide Patents of Kai-Li Jiang
  154. ^ US Patents of Akira Nakazawa
  155. ^ Worldwide Patents of Akira Nakazawa
  156. ^ US Patents of Ruilong Xie
  157. ^ Worldwide Patents of Ruilong Xie
  158. ^ US Patents of Eberhard Ammermann
  159. ^ Worldwide Patents of Eberhard Ammermann
  160. ^ US Patents of Lisa Seacat DeLuca
  161. ^ Worldwide Patents of Lisa Seacat DeLuca
  162. ^ Full patent listing for Thomas E. Murray
  163. ^ Thomas E. Murray web site
  164. ^ US Patents of Hongyong Zhang
  165. ^ Worldwide Patents of Hongyong Zhang
  166. ^ US Patents of John L. Melanson
  167. ^ Worldwide Patents of John L. Melanson
  168. ^ US Patents of Scott H. Wittkopp
  169. ^ Worldwide Patents of Scott H. Wittkopp
  170. ^ US Patents of Brian M. O'Connell
  171. ^ Worldwide Patents of Brian M. O'Connell
  172. ^ US Patents of Frederick A. Ware
  173. ^ Worldwide Patents of Frederick A. Ware
  174. ^ Worldwide Patents of John Hays Hammond, Jr.
  175. ^ The Infography of John Hays Hammond, Jr.
  176. ^ US Patents of Hossein Eslambolchi
  177. ^ Worldwide Patents of Hossein Eslambolchi
  178. ^ US Patents of Vincent J. Zimmer
  179. ^ Worldwide Patents of Vincent J. Zimmer
  180. ^ US Patents of Wilhelm Brandes
  181. ^ Worldwide Patents of Wilhelm Brandes
  182. ^ US Patents of Cary L. Bates
  183. ^ Worldwide Patents of Cary L. Bates
  184. ^ Bio of Cary L. Bates
  185. ^ US Patents of Xuemin (Sherman) Chen
  186. ^ Worldwide Patents of Xuemin (Sherman) Chen
  187. ^ US Patents of Xuemin Chen a
  188. ^ US Patents of Xuemin Chen b
  189. ^ US Patents of Xuemin Chen c
  190. ^ US Patents of Stanford R. Ovshinsky
  191. ^ Worldwide Patents of Stanford R. Ovshinsky
  192. ^ US Patents of Stanford Ovshinsky
  193. ^ US Patents of Brent A. Anderson
  194. ^ Worldwide Patents of Brent A. Anderson
  195. ^ US Patents of Josef Theurer
  196. ^ Worldwide Patents of Josef Theurer
  197. ^ US Patents of David V. Horak
  198. ^ Worldwide Patents of David V. Horak
  199. ^ US Patents of Sarbajit K. Rakshit
  200. ^ Worldwide Patents of Sarbajit K. Rakshit
  201. ^ US Patents of Paul W. Dent
  202. ^ Worldwide Patents of Paul W. Dent
  203. ^ US Patents of George P. Liang
  204. ^ Worldwide Patents of George P. Liang
  205. ^ US Patents of Wael W. Diab
  206. ^ Worldwide Patents of Wael W. Diab
  207. ^ US Patents of Hans-Joachim Santel
  208. ^ Worldwide Patents of Hans-Joachim Santel
  209. ^ US Patents of Gisela Lorenz
  210. ^ Worldwide Patents of Gisela Lorenz
  211. ^ US Patents of Garry R. Jackson
  212. ^ Worldwide Patents of Garry R. Jackson
  213. ^ US Patents of Pouya Hashemi
  214. ^ Worldwide Patents of Pouya Hashemi
  215. ^ George Westinghouse article at ideafinder.com
  216. ^ Hubert, P. G. (1894). Men of achievement. Inventors. New York: Charles Scribner's Sons. Page 296+
  217. ^ George Westinghouse article in Encyclopædia Britannica
  218. ^ US Patents of Jeffrey E. Stahmann
  219. ^ Worldwide Patents of Jeffrey E. Stahmann
  220. ^ US Patents of William Daniel Hillis
  221. ^ Worldwide Patents of William Daniel Hillis
  222. ^ US Patents of Norman M. Berry
  223. ^ Worldwide Patents of Norman M. Berry
  224. ^ US Patents of Mark W. Kroll
  225. ^ Worldwide Patents of Mark W. Kroll
  226. ^ Bio of Mark Kroll
  227. ^ US Patents of Robert R. Schmidt
  228. ^ Worldwide Patents of Robert R. Schmidt
  229. ^ US Patents of Lawrence A. Clevenger
  230. ^ Worldwide Patents of Lawrence A. Clevenger
  231. ^ US Patents of Carl J. Radens
  232. ^ Worldwide Patents of Carl J. Radens
  233. ^ US Patents of Bengt Lindoff
  234. ^ Worldwide Patents of Bengt Lindoff
  235. ^ US Patents of Ajith K. Kumar
  236. ^ Worldwide Patents of Ajith K. Kumar
  237. ^ US Patents of Elizabeth A. Sweeney
  238. ^ Worldwide Patents of Elizabeth A. Sweeney
  239. ^ US Patents of Esmael H. Dinan
  240. ^ Worldwide Patents of Esmael H. Dinan
  241. ^ US Patents of Keith R. Walker
  242. ^ Worldwide Patents of Keith R. Walker
  243. ^ US Patents of Hanson S. Gifford III
  244. ^ Worldwide Patents of Hanson S. Gifford III
  245. ^ US Patents of Dean L. Kamen
  246. ^ Worldwide Patents of Dean L. Kamen
  247. ^ US Patents of Timothy J. Slegel
  248. ^ Worldwide Patents of Timothy J. Slegel
  249. ^ US Patents of Daniel J. Winarski
  250. ^ Worldwide Patents of Daniel J. Winarski
  251. ^ US Patents of Liang Liu
  252. ^ Worldwide Patents of Liang Liu
  253. ^ US Patents of Steven L. Teig
  254. ^ Worldwide Patents of Steven L. Teig
  255. ^ US Patents of Philip D. Nguyen
  256. ^ Worldwide Patents of Philip D. Nguyen
  257. ^ US Patents of Frank J. Viola
  258. ^ Worldwide Patents of Frank J. Viola
  259. ^ US Patents of Victor S. Moore
  260. ^ Worldwide Patents of Victor S. Moore
  261. ^ US Patents of Kulvir S. Bhogal
  262. ^ Worldwide Patents of Kulvir S. Bhogal
  263. ^ US Patents of Victoria Smith
  264. ^ Worldwide Patents of Victoria Smith
  265. ^ US Patents of Michael (S.) Tsirkin
  266. ^ Worldwide Patents of Michael (S.) Tsirkin
  267. ^ Robert G. LeTourneau: Dean of Earthmoving
  268. ^ Texas Co-op Power: He Was a Mover and a Shaker
  269. ^ US Patents of Assaf Natanzon
  270. ^ Worldwide Patents of Assaf Natanzon
  271. ^ US Patents of William R. Tonti
  272. ^ Worldwide Patents of William R. Tonti
  273. ^ US Patents of Zine-Eddine Boutaghou
  274. ^ Worldwide Patents of Zine-Eddine Boutaghou
  275. ^ US Patents of Adam Heller
  276. ^ Worldwide Patents of Adam Heller
  277. ^ The 12 US Patents of Adam Heller prior to 1976
  278. ^ US Patents of Jeffrey W. Sleight
  279. ^ Worldwide Patents of Jeffrey W. Sleight
  280. ^ US Patents of Brent Keeth
  281. ^ Worldwide Patents of Brent Keeth
  282. ^ US Patents of Madhusudan K. Iyengar
  283. ^ Worldwide Patents of Madhusudan K. Iyengar
  284. ^ US Patents of Cyprian E. Uzoh
  285. ^ Worldwide Patents of Cyprian E. Uzoh
  286. ^ US Patents of Daniel C. Edelstein
  287. ^ Worldwide Patents of Daniel C. Edelstein
  288. ^ US Patents of Michael A. Rothman
  289. ^ Worldwide Patents of Michael A. Rothman
  290. ^ US Patents of Hartley Owen
  291. ^ Worldwide Patents of Hartley Owen
  292. ^ US Patents of Bran Ferren
  293. ^ Worldwide Patents of Bran Ferren
  294. ^ US Patents of Yoshihiro Kikuchi
  295. ^ Worldwide Patents of Yoshihiro Kikuchi
  296. ^ US Patents of Christopher J. Dawson
  297. ^ Worldwide Patents of Christopher J. Dawson
  298. ^ US Patents of Takeshi Chujoh
  299. ^ Worldwide Patents of Takeshi Chujoh
  300. ^ US Patents of Rajiv V. Joshi
  301. ^ Worldwide Patents of Rajiv V. Joshi
  302. ^ US Patents of Harry (Tom) Graef
  303. ^ Worldwide Patents of Harry (Tom) Graef
  304. ^ US Patents of Craig E. Hampel
  305. ^ Worldwide Patents of Craig E. Hampel
  306. ^ US Patents of Dorin Comaniciu
  307. ^ Worldwide Patents of Dorin Comaniciu
  308. ^ US Patents of Nobuyuki Taniguchi
  309. ^ Worldwide Patents of Nobuyuki Taniguchi
  310. ^ US Patents of Sandeep R. Patil
  311. ^ Worldwide Patents of Sandeep R. Patil
  312. ^ US Patents of Johnny M. Shieh
  313. ^ Worldwide Patents of Johnny M. Shieh
  314. ^ US Patents of Andrew J. Ouderkirk
  315. ^ Worldwide Patents of Andrew J. Ouderkirk
  316. ^ US Patents of James E. Bostick
  317. ^ Worldwide Patents of James E. Bostick
  318. ^ US Patents of Philip S. Yu
  319. ^ Worldwide Patents of Philip S. Yu
  320. ^ US Patents of Imad Libbus
  321. ^ Worldwide Patents of Imad Libbus
  322. ^ US Patents of Louis B. Rosenberg
  323. ^ Worldwide Patents of Louis B. Rosenberg
  324. ^ US Patents of Gerald F. McBrearty
  325. ^ Worldwide Patents of Gerald F. McBrearty
  326. ^ US Patents of Zvi Or-Bach
  327. ^ Worldwide Patents of Zvi Or-Bach
  328. ^ US Patents of Thomas J. Kennedy III
  329. ^ Worldwide Patents of Thomas J. Kennedy III
  330. ^ US Patents of Michael L. Fripp
  331. ^ Worldwide Patents of Michael L. Fripp
  332. ^ US Patents of John M. Ganci
  333. ^ Worldwide Patents of John M. Ganci
  334. ^ US Patents of Mark A. Horowitz
  335. ^ Worldwide Patents of Mark A. Horowitz
  336. ^ US Patents of James R. Kraemer
  337. ^ Worldwide Patents of James R. Kraemer
  338. ^ US Patents of Dureseti Chidambarrao
  339. ^ Worldwide Patents of Dureseti Chidambarrao
  340. ^ US Patents of Paul Ian Mackey
  341. ^ Worldwide Patents of Paul Ian Mackey
  342. ^ US Patents of James W. Seaman
  343. ^ Worldwide Patents of James W. Seaman
  344. ^ US Patents of Seung H. Kang
  345. ^ Worldwide Patents of Seung H. Kang
  346. ^ US Patents of Jonathan J. Hull
  347. ^ Worldwide Patents of Jonathan J. Hull
  348. ^ US Patents of Stephen G. Perlman
  349. ^ Worldwide Patents of Stephen G. Perlman
  350. ^ US Patents of Mukta Ghate Farooq
  351. ^ Worldwide Patents of Mukta Ghate Farooq
  352. ^ US Patents of Sebastian T. Ventrone
  353. ^ Worldwide Patents of Sebastian T. Ventrone
  354. ^ US Patents of Gregory McAvoy
  355. ^ Worldwide Patents of Gregory McAvoy
  356. ^ US Patents of Hiroshi (You) Yoshioka
  357. ^ Worldwide Patents of Hiroshi (You) Yoshioka
  358. ^ US Patents of Patrick B. Usoro
  359. ^ Worldwide Patents of Patrick B. Usoro
  360. ^ US Patents of Rajarshi Gupta
  361. ^ Worldwide Patents of Rajarshi Gupta
  362. ^ US Patents of Sadeg M. Faris
  363. ^ Worldwide Patents of Sadeg M. Faris
  364. ^ Prolific Inventors: Who are They and Where do They Locate? International Centre for Economic Research Working Paper No. 14/2010
  365. ^ List of Nikola Tesla patents
  366. ^ Jim Bieberich's Complete Nikola Tesla U.S. Patent Collection
  367. ^ a b The Patent Board website
  368. ^ 1790 Analytics website
  369. ^ USPTO Utility Patent Search for Rick Allen Hamilton II for 2012