Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Napa, CA ranks #2,041 worldwide for total patents filed all time, with 1,575 patents from 349 inventors. Leading employers of inventors based in Napa, CA include Ardelyx, Vactronix Scientific, Clean Power Research, L.L.C.. That works out to 19.9 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 349 inventors

Rank Inventor Primary Company Patents
1 Dominique Charmot Ardelyx 113
2 Julio C. Palmaz Vactronix Scientific 95
3 Thomas E. Hoff Clean Power Research, L.L.C. 86
#4 Imtiaz A. Chaudry Schering 58
#5 David Castrucci Dynacraft Bsc 39
#6 Kenneth D. Nelson Chevron 36
#7 Aimee Diskin Worldwise 27
#8 Stephen M. Salmon Cardiovascular Imaging Systems 26
#9 Thomas W. Hanson Hill-Rom Services 25
#10 Gregory W. Gale Regale 24
#11 Max Eric Schlienger 22
#12 Megan A. McClain Apple 19
#12 Daniel N. Hamilton Santen Pharmaceutical Co. 19
#14 Kristian N. Madsen Anokiwave 18
#15 Frank W. Atchley Atco Manufacturing Co. 16
#15 Mark Farley Finisar 16
#17 Daniel Freifeld Electro Scientific Industries 15
#17 Gregory Austin Allison Dotloop 15
#17 Ofer Tenenbaum Electronics For Imaging 15
#20 Kelly Lane Schwarzhoff Open Invention Network Llc Nc 14
#20 Michael C. Shaughnessy-Culver Synopsys 14
#20 Jon M. Arneson Meyer Sound Laboratories, Incorporated 14
#23 Elise Switzer Arizona Board Of Regents For And On Behalf Of Arizona State University 13
#23 William C. Weber Alberto Culver 13
#23 Jeffrey A. Morgan Samsung 13
#26 Andrew Michael Livingston Jane Technologies 12
#26 Sean Morham Applied Silver 12
#28 Joseph Traina Medtronic 11
#28 Laroy H. Edwards Chevron 11
#28 Calvin C. Williamson Kaiser Steel 11
#28 Tom Grimm Throwmotion 11
#28 Logan Bruns Proofpoint 11
#33 David Patrick McCrane Implus Footcare 10
#33 Daniel Mufson Alexza Pharmaceuticals 10
#33 Karen May Schering 10
#33 Christopher J. Emig MIT 10
#33 Tim Langfitt Leviton Manufacturing Co. 10
#38 Vincent Thomas Connors 9
#38 Henry Wilfred Lopez Riptide Bioscience 9
#38 Christian G. Palmaz Vactronix Scientific 9
#38 Larry E. Brown Kimberly-Clark Worldwide 9
#38 Nina Bergan French Ada-Es 9
#38 Arthur Kelley Smart Wires 9
#44 Gabriel Richard Pack Mcafee 8
#44 Craig A. Johanson Fulfillium 8
#44 Michael Risso Worldwise 8
#44 Dennis Douglas 8
#44 Patrick Angeles Unknown 8
#44 John E. Ahmann 8
#44 Wayne W. Rogers Alcon Laboratories 8

Part of California