Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Liège, BE ranks #3,674 worldwide for total patents filed all time, with 800 patents from 269 inventors. Leading employers of inventors based in Liège, BE include ExxonMobil, Colgate-Palmolive, Babyliss Faco Srl.

Showing 1–50 of 269 inventors

Rank Inventor Primary Company Patents
1 Trazollah Ouhadi ExxonMobil 42
2 Hoai-Chau Cao Colgate-Palmolive 38
3 Sophie Bourgeois Babyliss Faco Srl 26
#4 Michel Evers Aventis Pharma S.A. 23
#5 Georges Yianakopoulos Colgate-Palmolive 20
#6 Christina Zeller Delvaux Createur Sa 18
#6 Marios Economopoulos Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallurgie 18
#6 Bernard Pirotte Universite De Liege 18
#9 Michel Renard Institut National De La Recherche Agronomqiue 14
#9 Raphael Quinet Ericsson 14
#11 Serge Creutz Dow Corning 12
#12 Benno Dunkmann Saint-Gobain Glass France 11
#13 Paul Smets Schreder S.A. 10
#13 Marianne Germain Epigan Nv 10
#13 Paul Bleus Ce+T Power Luxembourg Sa 10
#13 Guillaume Docquier Proton World International N.V. 10
#13 Thierry Dumortier Browning International, Societe Anonyme 10
#13 Samuel Voccia Trasis S.A. 10
#19 Jean-Michel Foidart Universite De Liege 9
#20 Maud Jost Estetra Srl 7
#20 Nicole Kerzmann Colgate-Palmolive 7
#20 Leon Rutten Cockerill Sambre, Societe Anonyme 7
#20 Maxime Monnoyer Arcelormittal 7
#20 Andre Crutzen Colgate-Palmolive 7
#20 Jean-Paul Pirard Solvay (Société Anonyme) 7
#26 Jean-Paul Vieslet 6
#26 Armand L. Davister Prayon 6
#26 Jacques Georis Puratos N.V. 6
#26 Nathalie Dastbaz Colgate-Palmolive 6
#30 Melanie Taziaux Estetra Sprl 5
#30 Jean-Paul Borlee Suez Environment 5
#30 Armand Gering Fn Herstal S.A. 5
#30 Cristian Traum Sony 5
#30 François Milstein Ce+T Power Luxembourg Sa 5
#30 Georges Rahier 5
#30 Innokenty Gritskevitch Cmi Defence S.A. 5
#30 Antoine Godbille Fn Herstal S.A. 5
#38 James Jason Murray Off-World 4
#38 Jacques Piret Paul Wurth S.A. 4
#38 Maurice V. Bourlet Fabrique Nationale Herstal 4
#38 Marc Bonjean Areva T&D Sa 4
#38 Xavier Wery Techspace Aero S.A. 4
#38 Benoit Kerff Schreder S.A. 4
#38 Tom Borgers Imec Vzw 4
#38 John Witczak Schreder S.A. 4
#38 Santiague Pierre Cabot 4
#38 Maxime Dietens Schreder S.A. 4
#38 Patrizio Lancellotti Université De Liège 4
#38 Cécile Oury Université De Liège 4
#38 Mattia COLLU The Procter & Gamble 4