Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Weesp, NL ranks #3,157 worldwide for total patents filed all time, with 956 patents from 254 inventors. Leading employers of inventors based in Weesp, NL include Solvay Pharmaceuticals, B.V., Philips, Duphar International Research B.V..

Showing 1–50 of 254 inventors

Rank Inventor Primary Company Patents
1 Cornelis G. Kruse Solvay Pharmaceuticals, B.V. 55
2 Cornelis Marinus Schep Philips 36
3 Ineke van Wijngaarden Duphar International Research B.V. 30
#4 Josephus H. M. Lange Solvay Pharmaceuticals, B.V. 27
#5 Jacobus A. J. den Hartog Duphar International Research B.V. 19
#5 Wouter I. Iwema Bakker AbbVie 19
#7 Hein K. A. C. Coolen AbbVie 17
#7 Herman H. Van Stuivenberg Solvay Pharmaceuticals, B.V. 17
#7 Gustaaf J. M. Van Scharrenburg Solvay Pharmaceuticals, B.V. 17
#10 Derk Hamminga Duphar International Research B.V. 16
#11 Axel Stoit AbbVie 15
#11 Sebastianus J. Halkes Duphar International Research B.V. 15
#13 Henderik Willem Frijlink Rijksuniversiteit Groningen 14
#14 Arnoldus C. Grosscurt Duphar International Research B.V. 13
#14 Roelof Feenstra Solvay Pharmaceuticals, B.V. 13
#16 Andrew McCreary Solvay Pharmaceuticals, B.V. 12
#17 Bernard J. Van Vliet Solvay Pharmaceuticals, B.V. 11
#17 Wouter Wouters Duphar International Research B.V. 11
#17 Johan W. Scheeren Pharmachemie B.V. 11
#17 Jan Zorgdrager Duphar International Research B.V. 11
#21 Richardus Houtkooper Amazentis Sa 10
#21 Hendrik Dolman Duphar International Research B.V. 10
#21 Martinus T. M. Tulp Duphar International Research B.V. 10
#21 Willy Deleersnijder Solvay Pharmaceuticals, B.V. 10
#25 Gerben M. Visser Duphar International Research B.V. 9
#25 Hans H. Haeck Duphar International Research B.V. 9
#27 Jan-Paul van de Velde Duphar International Research B.V. 8
#27 Roelof van Hes 8
#27 Jacobus Tipker Solvay Pharmaceuticals, B.V. 8
#27 Kobus Wellinga Duphar International Research B.V. 8
#27 Wouter Bakker Solvay Pharmaceuticals, B.V. 8
#27 Hiskias G. Keizer Solvay Pharmaceuticals, B.V. 8
#27 Dennis Johan Biesmans Uniqure Ip B.V. 8
#34 Martinus Th. M. Tulp Solvay Pharmaceuticals, B.V. 7
#34 Arnoldus H. J. Herremans Solvay Pharmaceuticals, B.V. 7
#34 Martina A.W. Van Der Neut AbbVie 7
#34 Stephen K. Long Duphar International Research B.V. 7
#34 Jan Hartog Duphar International Research B.V. 7
#34 Rudolf Mulder Duphar International Research B.V. 7
#40 Jan Herman van Maarseveen Duphar International Research B.V. 6
#40 Harmen Jacob Geerligs Zoetis Services 6
#40 Arnold Van Loevezijn AbbVie 6
#40 Rudi Brands Duphar International Research B.V. 6
#40 Elizabeth Louise VAN DER KAM Abb Vie 6
#40 Pieter Smid AbbVie 6
#40 Johannes W. C. M. Jansen Duphar International Research B.V. 6
#40 Bartholomeus J. Van Steen Duphar International Research B.V. 6
#40 Chris G. Kruse Duphar International Research B.V. 6
#49 Guy Nys Solvay Pharmaceuticals, B.V. 5
#49 Paulus F. C. van der Meij Duphar International Research B.V. 5