Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Union City, CA ranks #418 worldwide for total patents filed all time, with 7,595 patents from 1,177 inventors. Leading employers of inventors based in Union City, CA include Cisco, Intel, Access Closure. That works out to 108.3 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 1,177 inventors

Rank Inventor Primary Company Patents
1 Sami Boutros Cisco 127
2 Charles C. Kuo Intel 110
3 Celso J. Bagaoisan Access Closure 97
#4 Manpreet Singh Meta 78
#5 Sang Thanh Nguyen Silicon Storage Technology 71
#6 Janet K. Lau 69
#6 Saeed Azimi Disney 69
#8 Chih-jen Chang IBM 67
#9 Dar-Shyang Lee Ricoh Company 66
#10 Parminder Singh Corium International 63
#11 Alfred Mak Applied Materials 61
#12 Ashok Murthy Lexmark International 54
#13 Alan Yu Auris Health 53
#14 Anil Shetty Citrix Systems 52
#15 Dragan Petrovic Panasonic 50
#16 Edmond Choy Hon Hai Precision Ind. Co. 49
#17 Jennifer R. Zhang Gilead Sciences 48
#17 Richard D. Haney X One 48
#17 Shih Yu Thomas Cheng August Home 48
#20 Florencia Lim Abbott 46
#21 Timothy J. Klemmer Seagate Technology 44
#22 Amit Sharma Hewlett Packard Enterprise 43
#22 Scott D. Schroeder Gilead Sciences 43
#24 Kashmir Sahota AMD 42
#25 Sunpreet Singh Arora Visa 41
#25 Xiao Lin Agency For Science, Technology And Research 41
#27 Keith Bjornson Pacific Biosciences Of California 40
#27 Bishwajit Nag Calyx Therapeutics 40
#29 Yimin Zhu Oned Material 39
#29 Emil Praun Google 39
#31 Rudy F. Garcia Kla-Tencor 38
#31 Xinmin Tian Intel 38
#33 Lori D. Washington Applied Materials 36
#34 Khairuzzaman Bashar Mullah Applied Biosystems 35
#34 Yu-Piao Wang Iv Technologies Co. 35
#36 Senh Thach Applied Materials 34
#36 Robert E. Novak Digeo 34
#38 Pit Fender Oracle 33
#38 Richard R. Schediwy Synaptics Incorporated 33
#40 Roy Leguidleguid Stryker 32
#41 Yan Man Tsui General Semiconductor 31
#41 Nimar Arora Oracle 31
#41 Jinhui Zhai Lednovation 31
#44 Hubertus Notohamiprodjo Disney 30
#44 Sesh Jalagam Broadcom 30
#46 Changyu Wang E.R. Squibb & Sons, L.L.C. 29
#46 Zihan Chen Sz Dji Technology Co. 29
#48 Teresa Alejandra Trejo Martin Gilead Sciences 28
#49 Shahzad Khalid 27
#49 Jerry Wong Applied Materials 27

Part of California