Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Foster City, CA ranks #166 worldwide for total patents filed all time, with 17,073 patents from 2,058 inventors. Leading employers of inventors based in Foster City, CA include IBM, Visa, Cisco. That works out to 505.0 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 2,058 inventors

Rank Inventor Primary Company Patents
1 Madhusudan K. Iyengar IBM 312
2 Ayman Hammad Visa 267
3 Jonathan W. Hui Cisco 203
#4 Somasekhar Bhamidipati Rigel Pharmaceuticals 140
#5 Richard Marks Sony 134
#6 Penglie Zhang Chemocentryx 125
#7 Yan Wang Bio-Rad Laboratories 123
#8 James B. Burr Oracle 110
#9 David Cheung Applied Materials 102
#10 Xiangping Qian Cytokinetics 92
#11 XIN-YUAN WU Foxconn 84
#12 Kazi Atif-Uz Zaman Electronic Arts 82
#13 Jongmin Baek Samsung 81
#14 Orit Foord AbbVie 78
#15 Varun Sharma Asm Ip Holding B.V. 77
#15 Qing Xu Global Blood Therapeutics 77
#15 John Yeh Artiva 77
#18 Yuexi Chen Visa 76
#19 Sanjeev Gangwar Bristol-Myers Squibb 74
#20 Feng Tian Mks Instruments 72
#20 David Lowe Winview 72
#22 Nicholas Vitale Gopro 71
#22 Jeffrey D. Chinn Applied Materials 71
#24 Andrew Witkowski Oracle 70
#25 Barret Lippey Dolby Laboratories Licensing 69
#26 James F. Kramer Groupon 67
#27 Yibin Zeng Chemocentryx 66
#27 Shek Fai Lau Sharper Image 66
#27 Katsumi Nagata Toyota 66
#27 Aniket Kale Heliae Development 66
#27 Lan Jiang Theravance Biopharma R&D Ip 66
#32 Hui Shao AbbVie 65
#33 Yonghong Song Portola Pharmaceuticals 64
#34 Theodore Harris Visa 63
#35 Yue Li Visa 62
#36 Mohamed Soliman Halliburton Energy Services 61
#37 Yi Zou Intel 60
#37 Zemin Zhang Genentech 60
#39 Michael George Farley Tile 59
#39 Andrew Buchanan Gault Sony 59
#41 Victor Lu TSMC 57
#42 Xiao He Neurogen 56
#42 Jeremy Lackey Quantum-Si Incorporated 56
#44 Jiazhong Zhang Plexxikon 55
#44 Aditya R. Ganjam Conviva 55
#44 Prashant Chopra Intuitive Surgical 55
#47 Sadik Bayrakeri Sedna Patent Services 54
#47 John Kolen Electronic Arts 54
#47 Alok Aggarwal Qualcomm 54
#50 Wei-Ching Liang Genentech 51

Part of California