Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Blois, FR ranks #7,814 worldwide for total patents filed all time, with 286 patents from 112 inventors. Leading employers of inventors based in Blois, FR include Aktiebolaget Skf, CNRS, Essilor International (Compagnie Generale D'Optique).

Showing 1–50 of 112 inventors

Rank Inventor Primary Company Patents
1 François Champalou Aktiebolaget Skf 20
2 Eliane Souteyrand CNRS 13
3 Bernard Lhospice Essilor International (Compagnie Generale D'Optique) 10
3 Raphael Rouillon John Crane Uk Limited 10
3 Michel Marechal Delphi Technologies Ip Limited 10
#6 Thierry Viellard Thomson Licensing 9
#7 Bruno Giros Bioprojet 8
#7 Thomas Deffieux CNRS 8
#9 Denny Roux 7
#9 Daniele Migliore-Samour Rhone-Poulenc Sante 7
#11 Maryse Lafouasse Pioneer (Corteva) 6
#11 Jean-Pierre Balbinot Zodiac Aero Electric 6
#13 Jean-Pierre Huet 5
#13 Alain Courtois 5
#13 Eric Mesnard Etablissements Caillau 5
#13 Jean-Francois Chamussy Compagnie Generale Des Establissements Michelin - Michelin & Cie 5
#13 Jean-Claude Bonin Lucas Industries Public Limited 5
#18 Thierry Cochet Delphi Technologies Ip Limited 4
#18 Francois-Xavier Guyard 4
#20 Christophe Cardon Bwi Company Limited S.A. 3
#20 Christophe Tapin Delphi International Operations Luxembourg S.A.R.L. 3
#20 Guillaume Trenado Delphi International Operations Luxembourg S.A.R.L. 3
#20 Etienne Pereira Delphi Technologies Ip Limited 3
#20 Bruno Bimbenet Delphi International Operations Luxembourg S.A.R.L. 3
#20 Daniel Decaux Delphi Technologies 3
#20 Frank Soulie Amphenol 3
#20 Louis Winand Rhone-Poulenc Industries 3
#20 Guillaume Faber Delphi International Operations Luxembourg S.A.R.L. 3
#20 Baptiste PERROT Phinia Jersey Holdings 3
#20 Johanne Seguin Assistance Publique—Hôpitaux De Paris (Aphp) 3
#20 Julien Roussilhe Delphi International Operations Luxembourg S.A.R.L. 3
#32 Yves Berlincourt 2
#32 Claude Leveque Delphi Technologies 2
#32 David Gacon Phinia Delphi Luxembourg Sarl 2
#32 Géraldine SIEGFRIED Inserm (Institut National De La Santé Et De La Recherche Médicale) 2
#32 Dany Guillot Delphi Technologies 2
#32 Jean-Luc Tournebise Nlx 2
#32 Roland Martinet 2
#32 Alexandre Mazel Softbank Robotics Europe 2
#32 Jérôme Dufal Airbus France 2
#32 Patrick Vervier Dubuis Et Cie S.A.S. 2
#32 Thomas Jorigne Robert Bosch Automotive Steering Vendome 2
#32 Alain Amand Delphi Technologies Ip Limited 2
#32 Jean-Etienne Blanc Delphi Technologies Ip Limited 2
#32 Veronique Munier Henkel Ag & Co. Kgaa 2
#32 Nicolas Rodier Delphi Technologies Ip Limited 2
#32 Ghislain Hardouin Delphi International Operations Luxembourg S.A.R.L. 2
#32 Amar Bouguerra Lemforder Nacam Sa 2
#32 Laurent Girault Wavecom 2
#32 André Racault Dubuis Et Cie S.A.S. 2