Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Riverside, CA ranks #729 worldwide for total patents filed all time, with 4,628 patents from 1,241 inventors. Leading employers of inventors based in Riverside, CA include Ocean'S King Lighting Science & Technology Co., Oracle, Affymetrix. That works out to 14.7 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 1,241 inventors

Rank Inventor Primary Company Patents
1 Chris Phillips 125
2 Robert Roy McMath 64
3 Wenbo Ma Ocean'S King Lighting Science & Technology Co. 63
3 Daniel ManHung Wong Oracle 63
#5 Michael C. Pirrung Affymetrix 44
#6 Steven Donald Atmur Northrop Grumman 43
#7 Michael Doyle Intel 42
#8 John Martin Cascade Microtech 40
#9 Mohamed A. H. Fahmy University of California 37
#10 Gary W. Scott Square D 36
#10 Brent D. Barnes Plant 21 36
#12 Yi HUANG Mitsubishi Electric 34
#12 Landon Cole McMath 34
#14 James C. Weaver MIT 33
#15 Moe Vazin American Maid Plastic 32
#16 Gerald E. Peterson Rain Bird 31
#17 Alan R. Chiuminatta 29
#17 Edward Chiuminatta 29
#19 Michael G. Valdez Edwards Lifesciences 27
#19 Tumay Tumer Nova R & D 27
#21 Robert J. Johnson Encon Safety Products 26
#22 Wy Peron Lee 25
#22 Fabio Zsigmond Ikan Holdings 25
#24 Jing Shi Unknown 24
#24 James Weigl Enternet Medical 24
#24 Victor Cornejo Unisen 24
#27 Anthony Magana Corona Clipper 23
#27 Robert C. Haddon University Of Kentucky 23
#29 Mike Smith Adroit Worldwide Media 22
#29 Charles E. Wyman Midwest Research Institute 22
#29 David F. Bocian University of California 22
#29 Brian Crites Microsoft 22
#29 Randy Rousseau Rusoh 22
#34 Robert J. Deans 21
#35 John Addink Aqua Conserve 20
#35 Robert Foster Harris Broadband Wireless Access 20
#37 Hector Rousseau Rusoh 19
#37 Leo James Lichte The Toro 19
#37 Carol J. Lovatt University of California 19
#37 David Kisailus University of California 19
#37 Richard A. Campfield 19
#42 Masanori Okamoto Fujisawa Pharmaceutical Co. 18
#42 Yadong Yin University of California 18
#42 Ahmed Tasnub Takaddus Niagara Bottling 18
#42 Frank T. Jackson Hartwell 18
#46 Sean R. Cutler University of California 17
#46 Michael Holmes Bird Products 17
#46 Robert Irvine Pitney Bowes 17
#46 Michael Inman Accentus Plc 17
#50 James Chua Salter Labs 16

Part of California