Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Diamond Bar, CA ranks #1,470 worldwide for total patents filed all time, with 2,296 patents from 459 inventors. Leading employers of inventors based in Diamond Bar, CA include Carefusion 303, Continental Appliances, A-Spine Holding Group. That works out to 41.7 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 459 inventors

Rank Inventor Primary Company Patents
1 George Mansour Carefusion 303 118
2 David Deng Continental Appliances 65
3 Chih-I Lin A-Spine Holding Group 63
#4 Jonathan Yeh Carefusion 303 59
#5 Willis Santamaria 47
#6 Kai Li Avery Dennison 45
#7 X. Steve Yao Caltech 34
#8 Chung Lung Chang Johnson Safety 32
#8 Usman Vakil Lights Of America 32
#8 Chung-Liang Chang ITRI 32
#11 Chih-Yu Hsia 31
#12 Ronald Wadsworth Calmar Holdings 30
#13 Jiejun Xu Hrl Laboratories 28
#14 Jay Yonemoto Medtronic 27
#15 Hanan Kupferman Western Digital Technologies 26
#15 Eric L. Moorehead Union Oil Company Of California 26
#17 Xiaoguang He Emcore 25
#17 Vivian Chou Superior Communications 25
#19 William Shyh-Chen Hsu Simplehuman 24
#20 Hans Bauer Schering 22
#21 Marco A. Jokada James R. Glidewell Dental Ceramics 21
#22 Chan S. Oh Beckman Instruments 20
#22 Bob B. Buchanan University of California 20
#24 Neil Korneff Carefusion 207 19
#24 Kenneth Baron Union Oil Company Of California 19
#24 Fong-Min Chang Instant Care 19
#27 Jackson Chun Chan Ever Win International 17
#27 Hakjin Kim Samsung 17
#27 Allen Yuh Comcast 17
#27 Kenneth A. Williams Inventus Holdings 17
#31 Yongchang Wang I/O Controls 15
#31 Ruey-Kang Chang Los Angeles Biomedical Research Institute At Harbor Ucla Medical Center 15
#33 Jimmie L. Whittington James River 14
#34 Edith W. Fung Johnson & Johnson 13
#34 Jacob Hawkins Troy-Csl Lighting 13
#34 Frank C. Ma Hon Hai Precision Ind. Co. 13
#34 Bruce E. Mount Perkinelmer 13
#34 Frankie Fan Broadcom 13
#39 Stephen L. Tyler The Toro 12
#39 Ferry Gunawan Callahan Cellular L.L.C. 12
#39 Brian Chan Seiko Epson 12
#39 David R. Van Loan Everett Charles Technologies 12
#39 Ruth Ann Greenblat R And A Synergy 12
#39 Christopher Antonio Pulone Seachrome 12
#39 Steven B. Cress 12
#39 Mark Licon Avery Dennison 12
#47 Xiwei Wu City Of Hope 11
#47 Guo Xiang Fan 11
#47 Clarence Lui Honeywell 11
#47 Xiangxu Chen Kerr 11

Part of California