Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

San Francisco, CA ranks #14 worldwide for total patents filed all time, with 225,019 patents from 26,999 inventors. Leading employers of inventors based in San Francisco, CA include University of California, Apple, Orbit Fab. That works out to 257.5 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 11,451–11,500 of 26,999 inventors

Rank Inventor Primary Company Patents
#9535 Kazuko Keino-Masu University of California 4
#9535 E. David Leonardo University of California 4
#9535 Gunnar Martin Byrod Apple 4
#9535 James Bultitude Orbit Fab 4
#9535 Peter Zimmerman Altana Pharma Ag 4
#9535 Jeffrey Loomans Siebel Systems 4
#9535 Ibrahim Cem Duruoz Sony 4
#9535 Trevor Austin Gray Google 4
#9535 Anthony Toranto 4
#9535 Wiltse J. Carpenter Microsoft 4
#9535 Joseph A. Farfel Google 4
#9535 Lawton Hom Alza 4
#9535 John Koper IBM 4
#9535 David R. Dulin Intel 4
#9535 Adam T. Slaboski The Clorox 4
#9535 Poya Lotfizadeh Formfactor 4
#9535 Toru Satoh Bridgestone 4
#9535 Robert L. Gross US Army 4
#9535 Ryan Massie Iac Search & Media 4
#9535 Shuen Chun Choy Mattson Technology 4
#9535 Brett J. Doleman Caltech 4
#9535 Shannon Colleen Fong Wki Holding Company 4
#9535 Richard Fitzhugh CLEMENTS Baker Hughes Energy Technology Uk Limited 4
#9535 Tina Yin-Ann Wang Google 4
#9535 Viktoriya Dubrovskaya International Aids Vaccine Initiative 4
#9535 Thomas E. Osborne Microsoft 4
#11477 Marco Mosciarello 3
#11477 Andrew Mosson 3
#11477 A. Geoffrey Skillman University of California 3
#11477 Siamak Baharloo Stanford University 3
#11477 John C. Boling 3
#11477 Kevin Po Google 3
#11477 Michael Simonian Cpr Prompt, L.L.C. 3
#11477 Ronald Ross 3
#11477 Laurene Petitjean Yale University 3
#11477 Jorge Artola 3
#11477 Arkadiy Shimanovich Novellus Systems 3
#11477 Ryan Michael Henbest Google 3
#11477 James Lennon Scale Ai 3
#11477 Shariq Shahab Hashme Scale Ai 3
#11477 Karunesh Ganguly University of California 3
#11477 Max Howard Accenture Global Solutions Limited 3
#11477 Branislav Jovanovic Apple 3
#11477 Alexander G. Woodward Karsten Manufacturing 3
#11477 Tianyi Xia Opendoor Labs 3
#11477 Edmond Chan Radioshack 3
#11477 Leopold D'Espaux University of California 3
#11477 Nathan Yee 3
#11477 Joshua Land 3
#11477 Ellen Beldner Google 3

Part of California