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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Walnut, CA ranks #1,123 worldwide for total patents filed in 2020, with 136 patents from 85 inventors. Leading employers of inventors based in Walnut, CA include Unknown, Estimote Polska Sp Z O.O., Medtronic. That works out to 4.8 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 85 inventors

Rank Inventor Primary Company Patents
1 Tseng-Lu Chien Unknown 9
2 Bao-Yi Tuang 7
3 Lukasz Kostka Estimote Polska Sp Z O.O. 4
3 Jakub Krzych Estimote Polska Sp Z O.O. 4
#5 Mike Liu Medtronic 3
#5 Edwin S. Fung West Coast Chain Mfg. 3
#5 Long Su Trw Technar 3
#5 Jimmy M. Quiambao The Boeing 3
#5 Michael McGrade 3
#5 John Hsu 3
#5 Garry Tsaur To2M 3
#5 Juan Batiz-Benet Protocol Labs 3
#5 Peiling Chang Chien 3
#14 Anfeng Huang 2
#14 Frank Tsaur To2M 2
#14 Guolin Yuan China Banknote Printing And Minting 2
#14 Jensen Chen Edwards Lifesciences 2
#14 Wei Qian NVIDIA 2
#14 Rocky Chi-Ray Lin 2
#14 Jeremy Hochman Revolution Display 2
#14 Raymond Valadez, Jr. Rovi Guides 2
#14 Albert Castro Quest Diagnostics Investments 2
#14 Jules Chen Quest Diagnostics Investments 2
#14 Sally Liao Yang 2
#14 Duc Phu Truong Kyocera Document Solutions 2
#14 Minoru Kanamori Kawasaki 2
#27 Songpol Boonsawat 1
#27 Keen Lam Virco Mfg. 1
#27 Michael Tu 1
#27 Charles Shi Consumer Lighting (U.S.) 1
#27 Hung-Chih Kuo Academia Sinica 1
#27 Ana Trinh Ccl Label 1
#27 William Jang Xerox 1
#27 Remberto L. Martin Viasat 1
#27 Dustin Huynh Emcore 1
#27 Bob Hsiung Hupa International 1
#27 Sandeep Vardhan Sensoria 1
#27 Mark A. Tarbell Caltech 1
#27 Jeffrey Yao 1
#27 Timothy Chen Columbia University 1
#27 Kwok Wai Wong Asm Assembly Automation 1
#27 Alan Jameson Ccl Label 1
#27 Todd T. Tran Directv 1
#27 Jerry Lo Western Digital Technologies 1
#27 Aileen Ngoc Tran Cognionics 1
#27 Wendell Goodwin Schlumberger Resource Management Services 1
#27 Kaoru Hisamoto Nortek Security & Control 1
#27 Hsien-Chi W. Niu Hamilton Sundstrand 1
#27 Lon T. Spada AbbVie 1
#27 Simon Liu Microsoft 1

Part of California