Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Walnut, CA ranks #1,108 worldwide for total patents filed in 2022, with 126 patents from 76 inventors. Leading employers of inventors based in Walnut, CA include Unknown, Goertek, Medtronic. That works out to 4.4 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 76 inventors

Rank Inventor Primary Company Patents
1 Tseng-Lu Chien Unknown 7
2 Debo Sun Goertek 6
2 Tomas Frausto 6
2 Mike Liu Medtronic 6
#5 Brian Kim Wormhole Labs 4
#5 Tritia V. Medrano Disney 4
#7 Julian Van Erlach Fabfitfun 3
#7 Duc Phu Truong Kyocera Document Solutions 3
#7 Jeremy Hochman Revolution Display 3
#7 Ramon Novales 3
#7 Alan Jameson Ccl Label 3
#12 Timothy Chen Columbia University 2
#12 Michael McGrade 2
#12 Bao-Yi Tuang 2
#12 Gavin McGrade 2
#12 Chi-She Chen Netlist 2
#12 Jakub Krzych Estimote Polska Sp Z O.O. 2
#12 Richard Spencer 2
#12 Nai-Wen Chang Au Optronics 2
#12 Jensen Chen Edwards Lifesciences 2
#12 Siming Li Nicira 2
#12 Peiling Chang Chien 2
#12 Lukasz Kostka Estimote Polska Sp Z O.O. 2
#12 Hung-Chih Kuo Academia Sinica 2
#25 Soon CHIA 1
#25 Charles Shi Consumer Lighting (U.S.) 1
#25 John Hsu 1
#25 Kitty Yu-Ling Yung Incipio 1
#25 Garry Tsaur To2M 1
#25 Ana Trinh Ccl Label 1
#25 Zhongjie Zhu Hli Solutions 1
#25 Hyunok Kim Alza 1
#25 Clark J. Wagner University Of Illinois 1
#25 Richard Cazares Kuraray Co. 1
#25 Anthony Xinghua Zhang 1
#25 Jinxing Yang 1
#25 Michael Tu 1
#25 Kevin Chao Hong University Of South Florida 1
#25 Husnain Alamdar Crorama 1
#25 Emily Tsaur To2M 1
#25 Tuan Do AT&T 1
#25 Jimmy M. Quiambao The Boeing 1
#25 Frank Liu IBM 1
#25 Erwin Catindig Citicorp Credit Services, Inc. (Usa) 1
#25 Terry O. Henn 1
#25 Karl Hisamoto Vivint 1
#25 Jen Chuan Wang ITRI 1
#25 Ken Lam Atmel 1
#25 Kwok Wai Wong Asm Assembly Automation 1
#25 Alexander P. Huang Rescale 1

Part of California