Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Bakersfield, CA ranks #1,183 worldwide for total patents filed all time, with 2,843 patents from 840 inventors. Leading employers of inventors based in Bakersfield, CA include Monsanto Technology, Building Materials Investment, Phytogen Seed Company. That works out to 7.0 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 840 inventors

Rank Inventor Primary Company Patents
1 Peter Guzman Monsanto Technology 124
2 Olan Leitch Building Materials Investment 88
3 Joel F. Mahill Phytogen Seed Company 63
#4 Brian Graves Beme International 57
#5 Chang Y. Cha Occidental Oil Shale 52
#6 Shachar Karniel Agricultural Research And Development Limited Liability 44
#7 Thomas E. Ricketts Occidental Oil Shale 41
#7 Randall W. Hungate Merck 41
#9 Glenn Richards Resmed Pty 36
#10 Terrence J. Frett Sun World International 27
#11 Allan P. Henderson Terracon Consultants 25
#11 Barry W. Townsend Bioquest Prosthetics, Llc. 25
#13 Chiao Kai Hwang Intel 24
#14 T. Anthony Don Michael Unknown 23
#14 Khoa Duong Glam And Glits Nail Design 23
#16 Marcia L. Stockton IBM 22
#16 Stanley W. Ellis Vertical Tank 22
#16 Angelo L. Mazzei Mazzei Injector Company 22
#16 Byron Claudino Bioquest Prosthetics, Llc. 22
#20 Eric J. Charles Colgate-Palmolive 21
#21 Scott Gibson Burke Gibson 20
#21 James N. Curti Salter Labs 20
#23 Rama Prasad Intel 19
#23 Harrihar A. Pershadsingh Bethesda Pharmaceuticals 19
#25 James Sproul The Conard Pyle 18
#25 Ana Katrina Tan Glam And Glits Nail Design 18
#27 Rex E. Duhn Duhn Oil Tool 17
#27 Warren Stockton Snake River Machine 17
#27 Andre R. Da Costa Membrane Technology And Research 17
#30 John M. Gombos A.C.X. Trading 16
#30 Lehman T. Reed Midway Fishing Tool 16
#30 Robert G. James NVIDIA 16
#33 Sal Giumarra Agricultural Research And Development Limited Liability 15
#33 Terry R. Gong Earth Renaissance Technologies 15
#35 C. James Blom Roxor 13
#35 Damon Silva Arthroscopic Surgery Associates 13
#37 Eric Li Inventec 12
#37 Leo D. Hudson Bestline Liner System 12
#37 Michael K. Miller American Regent 12
#37 John Bailey Siemens Medical Instruments Pte. 12
#37 Rick Smith Entit Software 12
#37 Jason D. Byrne Lsi 12
#43 Eric L. Berger Chevron 11
#43 William M. Jameson Bayer Healthcare 11
#43 Richard J. Dyer Chemplex 11
#43 Martin G. Martz Archform 11
#43 Phillip E. Pruett Cidra 11
#43 Steven A. Schopler Pioneer Surgical Technology 11
#43 Stanley O. Hutchison Chevron 11
#43 William L. Davis Emerson Electric 11

Part of California