Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Walnut, CA ranks #854 worldwide for total patents filed in 2019, with 180 patents from 98 inventors. Leading employers of inventors based in Walnut, CA include Unknown, Revolution Display, Western Digital Technologies. That works out to 6.3 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 98 inventors

Rank Inventor Primary Company Patents
1 Tseng-Lu Chien Unknown 21
2 Bao-Yi Tuang 13
3 Jeremy Hochman Revolution Display 5
3 Jerry Lo Western Digital Technologies 5
#5 Jimmy M. Quiambao The Boeing 4
#5 Mike Liu Medtronic 4
#5 Jakub Krzych Estimote Polska Sp Z O.O. 4
#8 Lon T. Spada AbbVie 3
#8 Alan Jameson Ccl Label 3
#8 Agnes Liu Yahoo Holdings 3
#8 Lukasz Kostka Estimote Polska Sp Z O.O. 3
#8 Anfeng Huang 3
#8 Hung-Chih Kuo Academia Sinica 3
#14 Han-Sheng Yuh Comcast 2
#14 John Hsu 2
#14 Ana Trinh Ccl Label 2
#14 Ian Britt 2
#14 Brian Cutler Snap-On Incorporated 2
#14 Byron Quach Spectrum Brands 2
#14 William Jang Xerox 2
#14 Seth Chang Cordelia Lighting 2
#14 Jules Chen Quest Diagnostics Investments 2
#14 Pamela Lee Cisco 2
#14 Edwin S. Fung West Coast Chain Mfg. 2
#14 Drow Lionel O'Young Mitsubishi Chemical 2
#14 Guan H Su Aerovironment 2
#14 Henry Au Honeywell 2
#14 Peiling Chang Chien 2
#14 Nzube John Etonye 2
#14 Xinlan Liu J&S Co. 2
#14 John R. McDowell Microsoft 2
#14 Siming Li Nicira 2
#14 Jeff Chang Omnicell 2
#14 Roger Wu Eyes4Lives 2
#35 Rocky Chi-Ray Lin 1
#35 Jose Luna Jabil 1
#35 Eric Norman AT&T 1
#35 Sung-Woo Chung Samsung 1
#35 Wei Qian NVIDIA 1
#35 Wenkan Jiang Slt Technologies 1
#35 Frank Tsaur To2M 1
#35 Kuang Yu Lin 1
#35 Jolene Grinstead Merchsource 1
#35 Tomasz Strekowski Incipio 1
#35 Glen Gemeniano Sprint Communications 1
#35 Michael W. Lo Broadcom 1
#35 Kuo-Hung Tseng Wistron Neweb 1
#35 Phillip Chen Palantir Technologies 1
#35 Shraddha Patel Superior Communications 1
#35 Joseph C. Silva RTX (Raytheon) 1

Part of California