Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

San Luis Obispo, CA ranks #1,477 worldwide for total patents filed all time, with 2,283 patents from 530 inventors. Leading employers of inventors based in San Luis Obispo, CA include Immersion, Dioptics Medical Products, Promega. That works out to 48.5 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 530 inventors

Rank Inventor Primary Company Patents
1 Louis B. Rosenberg Immersion 262
2 Henry Welling Lane Dioptics Medical Products 108
3 Eric Rhea Dioptics Medical Products 61
#4 Poncho Meisenheimer Promega 49
#5 William Waycott Seminis Vegetable Seeds 46
#6 Herbert W. Hoeptner, III Unknown 44
#7 Don Hannula Nellcor Puritan Bennett 40
#8 Joel R. Walker Promega 36
#9 Andrew John Smith IBM 30
#10 Jeremy Fissell Sunset Skateboard 29
#10 Peter Muller Andrews Paper & Chemical Co. 29
#12 Joel J. Sheets Dow Agrosciences 26
#13 Peter Smidth Exalt Communications Incorporated 21
#13 Randolph Treur Lam Research 21
#15 Scott Ganaja Unknown 20
#16 Ce Shi Promega 19
#16 Chris Melcer Applied Materials 19
#16 Greg M. Chambers Karl Storz Imaging 19
#19 Thomas M. Katona Soraa 18
#20 Jason Brown 2Kdirect 17
#20 Michael Vogtmann Strasbaugh 17
#22 Charles H. Applegarth Saes Pure Gas 16
#23 Shane Thomas 2Kdirect 15
#23 John DeVincenzo Unknown 15
#23 Nathaniel C. Bair Accuri Cytometers 15
#26 John F. Paulick Wine Master Cellars 14
#27 Dustin Eli Gamble Lockheed Martin 12
#27 Joseph T. Wilson, III IBM 12
#27 Matthew A. Wormley Adobe 12
#30 Neal Saiki Flex 11
#30 Christopher Hoffman Samsung 11
#32 James K. Palmer 10
#32 Matthew Hall Csidentity 10
#32 Thomas Linn Lloyd Baggs Innovations 10
#32 Todd M. Meaney Stoneridge Control Devices 10
#32 Samuel Slishman Science & Technology Corporation @ Unm 10
#32 Al Siamon Unknown 10
#32 Marc Ernest Willerth Magnetic Variation Services 10
#32 Jerris E. Greenblat Performance Apparel 10
#40 Michael Joseph Allwein General Atomics Aeronautical Systems 9
#40 Amelia Michele Degenkolb Alydia Health 9
#40 Joe Bonzi 2Kdirect 9
#40 William J. Kalenian Strasbaugh 9
#40 Ross E. Johnson IBM 9
#40 Neil Wallace Higgins Bunge Oils 9
#40 Tommy L. Bennett Amazon 9
#47 John Collen Sram 8
#47 Alexander Kim Cisco 8
#47 Guobin Liu Intel 8
#47 Alan Strasbaugh Strasbaugh 8

Part of California