Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Royan, FR ranks #16,950 worldwide for total patents filed all time, with 87 patents from 42 inventors. Leading employers of inventors based in Royan, FR include Institut Francais Du Petrole, Basell Polyolefine Gmbh, Lesaffre Et Compagnie.

Showing 1–42 of 42 inventors

Rank Inventor Primary Company Patents
1 Pierre-Claude Layotte Institut Francais Du Petrole 7
2 Christian Tellier Basell Polyolefine Gmbh 6
2 Jean-Michel Bavouzet Lesaffre Et Compagnie 6
#4 Andre James Institut Francais Du Petrole 4
#4 Jose Portoles Epsilon Composite 4
#4 Bruno Le Pioufle CNRS 4
#4 Jean Graille Roquette Freres 4
#8 Daniel Dutheil Les Robinets Presto 3
#8 Geraldine Primazot Clariant Specialty Fine Chemicals (France) 3
#8 Dominique Breton CNRS 3
#8 Jean Brac Institut Francais Du Petrole 3
#8 Didier Esteyne Airbus (S.A.S.) 3
#8 Jean-Marc Paget Fonderie & Ateliers Des Sablons 3
#14 Grégory Bacquet Les Robinets Presto 2
#14 Olivier JÉRÔME Stelia Aerospace 2
#14 Ana Maria Panea Federal-Mogul Powertrain 2
#14 Aline Balhadere Societe Europenne De Propulsion 2
#14 Stéphane Chauveau Les Robinets Presto 2
#19 Sylviane Pulvin-Houde 1
#19 Yann CHAUMET Epsilon Composite 1
#19 Remi Biju-Duval Les Robinets Presto 1
#19 Rémi Biju Duval Les Robinets Presto 1
#19 Alexandre-Benoit Duret CEA 1
#19 Gilles Geirnaert 1
#19 Cyril Fromentin Resmed Paris Sas 1
#19 Jean Cassand Institut Francais Du Petrole 1
#19 Jean-Pierre Fail Institut Francais Du Petrole 1
#19 Jacques E. Prat 1
#19 Patrice M. Priam-Doizi 1
#19 Dany Freminet 1
#19 Sierre C. Layotte Institut Francais Du Petrole 1
#19 Marie-Hélène Bischoff-Barre Autoliv Development Ab 1
#19 Marie-Claude Dropsy 1
#19 Epiphane Codjovi U.S. Philips 1
#19 Henri Grizel Institut Francais De Recherche Pour L'Exploitation De La Mer (Ifremer) 1
#19 Francois Keller Intertechnique 1
#19 Eric Leduc CEA 1
#19 Christine Benistant CNRS 1
#19 Denis Jeandin Salomon S.A. 1
#19 Gilbert Breyton 1
#19 Brigitte Thomasset Total Raffinage Distribution S.A. 1
#19 Marc Menard Total Raffinage Distribution S.A. 1