Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

San Leandro, CA ranks #1,163 worldwide for total patents filed all time, with 2,876 patents from 574 inventors. Leading employers of inventors based in San Leandro, CA include Ep Technologies, Immersion, Ai Incorporated. That works out to 31.6 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 574 inventors

Rank Inventor Primary Company Patents
1 Russell B. Thompson Ep Technologies 111
2 Robert W. Heubel Immersion 75
3 Shahin Fathi Djalali Ai Incorporated 70
#4 Weiguo Liu Merck 69
#5 Dean Hu Spiracur 66
#6 Fred Reichert Roche Molecular Systems 53
#7 Robert R. Hollis Emerson Electric 46
#8 Rajesh Krishnan Abbott 44
#9 Christopher U. Phan Providence Medical Technology 43
#10 Ming Sang Kwan Spansion Llc. 42
#11 Ledio Ago Cisco 36
#12 Theodore Speers Actel 35
#13 Mauro Melli Magic Leap 33
#14 Juergen Biener Lawrence Livermore National Security 31
#14 Joseph C. Stark, III Tc1 31
#16 Alexandre R. Tumlinson Carl Zeiss Meditec Ag 29
#16 Jason Ellis Salesforce 29
#18 Volkmar Guenzler-Pukall Fibrogen 27
#19 Randy Cruz Soriano Konica Minolta Laboratory U.S.A. 26
#20 Michael F. Gifford Cognex 23
#21 Miteshkumar Ishwarbhai Patel 22
#22 Bryan W. Reed Integrated Dynamic Electron Solutions 21
#23 John A. Walker Bio-Rad Laboratories 20
#23 Daniel H. Scharff Elo Touch Solutions 20
#23 William E. Humphrey Humphrey Instruments 20
#26 Harlan Lee Sur, Jr. Vlsi Technology 19
#26 Mikhail Gordeev 19
#28 XIAOHONG ZHONG Pioneer (Corteva) 18
#28 John Boreczky 18
#30 Roy P. Moeller Bruker Daltonics 17
#30 Jaime Arturo Romero Tc1 17
#32 Roger N. Hitchcock Parker-Hannifin 16
#32 Jonathan Leland Thorn Gopro 16
#32 Abigail R. Kennedy Exelixis 16
#32 David Larocca Cancer Research Fund Of Contra Costa 16
#36 Monika M. Biener Lawrence Livermore National Security 15
#36 Leonid Selyutin Applied Materials 15
#36 Emily A. Stein Tulavi Therapeutics 15
#39 Viva Chu Comcast 14
#39 Betty Huang Rigel Pharmaceuticals 14
#39 Paul D. Anderson Harris 14
#42 James G. Lovewell Angiodynamics 13
#42 Evan Adams Oracle 13
#42 Andrew Goodwin G.A.L. Manufacturing Company 13
#42 David R. Tholfsen Mvrx 13
#42 Elaina Mann Sugen 13
#42 Hector A. Dauvergne 13
#42 Jeffrey B. Stewart Cybersonics 13
#49 Susan E. Bailey HP 12
#49 Stephen Hogan Qed Technologies 12

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