Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Walnut, CA ranks #877 worldwide for total patents filed all time, with 3,803 patents from 870 inventors. Leading employers of inventors based in Walnut, CA include Unknown, Revolution Display, C2 Co.. That works out to 133.8 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 870 inventors

Rank Inventor Primary Company Patents
1 Tseng-Lu Chien Unknown 226
2 Jeremy Hochman Revolution Display 74
3 Eddie Chen C2 Co. 60
#4 Ken Lam Atmel 59
#5 Fang Lu Broadcom 47
#6 Lon T. Spada AbbVie 37
#7 Wei Qian NVIDIA 35
#7 Garry Tsaur To2M 35
#7 Chi-She Chen Netlist 35
#10 Charles J. Johnston Delaware Capital Formation 34
#10 Mike Liu Medtronic 34
#12 Bao-Yi Tuang 32
#12 Tomas Frausto Carefusion 303 32
#14 Han-Sheng Yuh Comcast 31
#15 David V. Butler Scientific Pharmaceuticals 29
#16 Jakub Krzych Estimote Polska Sp Z O.O. 27
#17 Jerry Lo Western Digital Technologies 26
#17 Lukasz Kostka Estimote Polska Sp Z O.O. 26
#19 Anthony Le Advantest 24
#19 Eric Chi Chung Yip Qualcomm 24
#19 Bob Hsiung Hupa International 24
#22 Hong Liang Ningbo Power Stationery & Promotion Industry Co. 21
#22 Julian Van Erlach Fabfitfun 21
#24 Husnain Alamdar Crorama 20
#24 Jimmy M. Quiambao The Boeing 20
#24 Frank Sacca Conexant Systems 20
#24 Debo Sun Goertek 20
#28 Tony J. Alba Cbc Industries 19
#29 Michael Lin Waffer Technology 18
#29 Brian Cutler Snap-On Incorporated 18
#29 Clark J. Wagner University Of Illinois 18
#32 Guan H Su Aerovironment 17
#32 Vincent Peng Honeywell 17
#32 Chih-Chiang Kuo Institute For Information Industry 17
#32 Darren Davis Overture Services 17
#32 Wesley Lin Oracle 17
#37 Agnes Liu Yahoo Holdings 16
#37 Shraddha Patel Superior Communications 16
#37 Ramesh Kashi University Of Connecticut 16
#37 David J. Kuether Directv 16
#41 Hung-Chih Kuo Academia Sinica 15
#41 Edward F. Tuck Social Fabric 15
#41 Duc Phu Truong Kyocera Document Solutions 15
#44 William F. Keller Koso Internationa 14
#44 Jake Fyfe Nant Holdings Ip 14
#44 David Ross Lerman Say Media 14
#44 Peiling Chang Chien 14
#44 Robert M. Price Microsoft 14
#44 Chih-Hong Hsieh Simplehuman 14
#44 Helen Tang Simplehuman 14

Part of California