Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Richmond, CA ranks #1,035 worldwide for total patents filed all time, with 3,287 patents from 717 inventors. Leading employers of inventors based in Richmond, CA include Cisco, Apple, Kardium.

Showing 1–50 of 717 inventors

Rank Inventor Primary Company Patents
1 Robert Edgar Barton Cisco 230
2 Robert J. Hill Apple 83
3 Fernando Luis de Souza Lopes Kardium 53
#4 Orin Del Vecchio The Toronto-Dominion Bank 47
#5 Di Xu China Institute Of Water Resources And Hydropower Research 41
#6 Bruce Peter Cran Make Great Sales Limited 40
#7 Semion Krivulin Cfs Concrete Forming Systems 37
#8 Sungeun Kim PepsiCo 35
#8 Daniel Martin Reinders Kardium 35
#10 Surjit Bhimarao Dixit Zymeworks 32
#11 Stanley Ho Allure Home Creation Co. 31
#11 David Humby Open Text 31
#13 Damien Gerard Loveland Absolute Software 30
#14 Xinyao Du Acuitas Therapeutics 29
#15 Ray Tat Lung Wong Marine Canada Acquisition 28
#16 Eric Jeffrey Seiko Epson 26
#16 Thomas Chen Speedlink Technology 26
#18 Kumar Anandabairavasamy Anand Seiko Epson 25
#18 Ahmed Merzouk Biopep Solutions 25
#20 Benjamin Eric Kerby Clarius Mobile Health 24
#20 Berthold Fecteau Bombardier Recreational Products 24
#22 Bruno Schuehmacher Bombardier Recreational Products 23
#22 Ricky Yik Hei Ngan Ignis Innovation 23
#24 Henry Ip Cooledge Lighting 22
#25 Holger Janssen Vtech Telecommunications Limited 21
#26 Mayukh Saubhasik Arista Networks 20
#26 Kenneth L. Glinz Western Clinical Engineering 20
#28 Thomas P. Chmara Nortel Networks Limited 19
#28 Brian Stroud Cae Machinery 19
#30 Chengcheng Zhang University Of Texas System 18
#31 Marla Charisse Kott Illen Products 17
#31 Benjamin Stuart Sparrow Saltworks Technologies 17
#31 Paul S. Rennie University Of British Columbia 17
#31 Shoukat Dedhar Sunnybrook Health Sciences Centre 17
#31 Gordon Chiu Rutgers, The State University Of New Jersey 17
#36 Richard Redfern Marine Canada Acquisition 16
#36 Yanbing Ding Neuromed Pharmaceuticals 16
#36 Ralph Tischler Vtech Telecommunications Limited 16
#36 Eric Scott ExxonMobil 16
#36 Zaheen Somani Research In Motion Limited 16
#36 Raymond Chow Seiko Epson 16
#36 Michel Landry Canadian Liquid Air Ltd./Air Liquide Canada Ltee 16
#43 Karen Tsoek-Ji Wong Neovasc Tiara 15
#43 Hai D. Nguyen Access Business Group International 15
#43 James Redmond 15
#43 Edouard Asselin University Of British Columbia 15
#43 Thomas Leung Fujifilm 15
#48 Alexander Naimagon Johnson & Johnson 14
#48 Zihe Ren Jetti Resources 14
#48 Tamer Mohamed Aspect Biosystems 14