Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Campbell, CA ranks #123 worldwide for total patents filed all time, with 21,907 patents from 2,187 inventors. Leading employers of inventors based in Campbell, CA include Apple, Ep Technologies, Intermolecular. That works out to 498.4 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 2,187 inventors

Rank Inventor Primary Company Patents
1 Yong Liu Apple 333
2 David K. Swanson Ep Technologies 329
3 Tony P. Chiang Intermolecular 270
#4 Raghuveer S. Makala Sandisk Technologies 238
#5 Hou T. Ng HP 184
#6 Bryan R. Martin 8X8 176
#7 Robin Atkins Dolby Laboratories Licensing 175
#8 Sarma V. Vangala Apple 170
#9 David D. Smith Sunpower 168
#10 Aaron Germain Relign 159
#11 David C. Graham Apple 156
#12 Zhishen Liu 8X8 155
#13 Wael Zohni Invensas 147
#13 Adrian Kaehler Magic Leap 147
#15 Vivek Agarwal Nicira 145
#16 Xiaosong Zhou Apple 137
#17 David Harry Garcia Meta 128
#18 Ganesan Chandrashekhar Nicira 127
#19 Mohamed N. Darwish Maxpower Semiconductor 126
#20 Frank B. Schmuck IBM 124
#21 Jason Liang IBM 122
#22 Michael Frank AMD 119
#23 Jeffry E. Gonion Apple 117
#23 Vladimir Nikitin HGST 117
#25 William C. Plants Actel 111
#26 Sanjeev Baluja Applied Materials 104
#27 Qing Zhao Disney 103
#27 Joseph Yudovsky Applied Materials 103
#29 Andrei V. Shchegrov Kla-Tencor 97
#30 Theodore R. Kucklick Cannuflow 95
#31 Luca Fasoli Sandisk 3D 94
#32 Farouk Belghoul Apple 93
#32 Jeffrey A. Kusnitz IBM 93
#34 Robert K. Yang Warner-Lambert Company 87
#35 Xiang Chen Apple 84
#35 Michael J. Brown Adcor Industries 84
#35 Stephen A. Pombo Kopin 84
#38 Richard Anthony DiPietro IBM 83
#38 Madhusudan Chaudhary Apple 83
#40 Conor O'Sullivan Pdf Solutions 82
#40 Barnaby John James X Development 82
#42 Ron A. Hopkinson Apple 80
#43 Douglas C. Watson Nikon 75
#44 Hyungjin Kim Samsung 74
#44 Shiann-Ming Liou Disney 74
#46 Jonathan Scott Wood Traxxas 73
#47 Dale B. Schenk Neuralab Limited 72
#48 Jamil Kawa Synopsys 69
#48 Anoop K. Bhattacharjya Seiko Epson 69
#50 Matthew J. Sundstrom Apple 68

Part of California