Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

El Sobrante, CA ranks #4,146 worldwide for total patents filed all time, with 681 patents from 144 inventors. Leading employers of inventors based in El Sobrante, CA include Dicon Fiberoptics, Biomed Packaging Systems, Chiron.

Showing 1–50 of 144 inventors

Rank Inventor Primary Company Patents
1 Ho-Shang Lee Dicon Fiberoptics 58
2 James Brown Biomed Packaging Systems 46
3 Cynthia Shafer Chiron 29
#4 Shawn Suko Roche Molecular Systems 27
#5 Sham-Yuen Chan Bayer Healthcare 26
#6 John G. Bauman Schering 25
#6 Gary Van Nest Dynavax Technologies 25
#8 Damian O. Arnaiz Berlex Laboratories 24
#9 Jeffrey B. Lee Dicon Fiberoptics 21
#10 Bruce M. Novak University of California 19
#11 Meir Moshe Bioventrix 16
#12 Samuel Marcus-Flack Truthseeker Solar 15
#13 James David Clarkson Kepler Computing 14
#13 Alexandr Nikitin Airbus 14
#15 Aidon P. Jennery IBM 12
#16 Hiroshi Satake Hitachi 11
#17 Christopher William West Icagen 10
#18 Akbar Riahi Genesys Telecommunications Laboratories 9
#19 William Donakowski 8
#19 John J. McNamara Trillion Science 8
#21 Soren Juelsgaard Uatc 7
#21 Nicholas P. Everett Stauffer Chemical 7
#21 Irina M. Conboy University of California 7
#24 Curtis Calhoun Mobitv 6
#24 Kirk T. O'Reilly Chevron 6
#24 Jonathan Ames Geo. M. Martin 6
#24 John H. Fehn University of California 6
#24 Chun-Ming Ko Lightech Fiberoptics 6
#24 Andrew Michael Thomas Chevron 6
#24 Jeffery T. Springer Stauffer Chemical 6
#31 Chester D. Gordon Chevron 5
#31 Gordon V. Aaserude 5
#31 Ashley Jones Thales Australia Limited 5
#31 Paul F. Daley 5
#31 Virgil Rhodius University of California 5
#36 Fabio Angius Snowflake 4
#36 Steven G. Platt Agracetus 4
#36 Michael J. Conboy University of California 4
#36 Michael Marziale 4
#36 Donald A. Olson USDA 4
#36 Haiguang Zhang Exelixis 4
#42 Garrett Kramer Schlumberger Technology 3
#42 Barbara McLaughlin United Metal Receptable 3
#42 Arianna Golden 3
#42 Marcos de Azambuja Turqueti Creative Electron 3
#42 John C. Haas Chevron 3
#42 Alex Mattana Infinium Technology 3
#42 Richard R. Hurrey 3
#42 Penelope Anne Norman 3
#42 Jaeson Paul JPMorgan Chase 3

Part of California