Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Chalmette, LA ranks #15,157 worldwide for total patents filed all time, with 104 patents from 58 inventors. Leading employers of inventors based in Chalmette, LA include Ballard Power Systems, USDA, Google. That works out to 4.8 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 58 inventors

Rank Inventor Primary Company Patents
1 John R. Gordon Ballard Power Systems 13
2 Joseph S. Bruno USDA 6
3 Ronald A. Daspit 5
#4 John Massey Google 3
#4 Angelo V. Quaglino, Jr. Unknown 3
#4 Michael H. Deharde 3
#4 Donald E. Gruben 3
#4 Dalan Bayham Project Consulting Services 3
#4 Edward Lewis 3
#4 Charles L. Shepard USDA 3
#11 Lawrence G. DeHarde 2
#11 M. Franz Vogt 2
#11 Paul L. Wayman 2
#11 Robert John Rockwell 2
#11 Harry G. Griffin 2
#11 Thomas Bordelon 2
#11 Ryan Earl Roberts Lockheed Martin 2
#11 Francis B. Grosz, Jr. NASA 2
#11 Lawrence W. Thonn, Jr. 2
#11 Robin H. Ruffino 2
#11 Cynthia Diaz IBM 2
#22 Daniel T. Carreras 1
#22 John D. Sweeney Amax 1
#22 Michael D. Chambon 1
#22 Karen R. Wolfe 1
#22 Calvin Melerine 1
#22 James E. Saul, Jr. Laitram 1
#22 Lawrence De Harde 1
#22 Anthony Randazzo Unknown 1
#22 Robert J. Ducote 1
#22 Glenda Ducote 1
#22 Joann Gail Decossas 1
#22 Steven Andrew Melerine 1
#22 Chet Ray Nunez Mechanical Equipment Company 1
#22 Roger A. Frederickson ExxonMobil 1
#22 Quincy Ann Butler 1
#22 Benjamin Dickinson 1
#22 Bernhardt Helmke, III 1
#22 Ken Neider 1
#22 Clifford R. Bryan, deceased 1
#22 Kevin Lacoste 1
#22 Karen Lacoste 1
#22 Linda R. Burrow 1
#22 Nick Kostopoulos 1
#22 Joseph C. Wessing, Jr. 1
#22 Allen R. Noel 1
#22 Alanson J. Arnold 1
#22 Brian E. Milam 1
#22 Joseph E. Bellande, IV 1
#22 Ward L. Copening 1

Part of Louisiana