Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Enkhuizen, NL ranks #4,360 worldwide for total patents filed all time, with 637 patents from 123 inventors. Leading employers of inventors based in Enkhuizen, NL include Syngenta Participations Ag, Syngenta Crop Protection Ag, Syngenta Seeds B.V..

Showing 1–50 of 123 inventors

Rank Inventor Primary Company Patents
1 Henricus Godefridus Wilhelmus Stemkens Syngenta Participations Ag 100
2 Ronald Christiaan Snijder Syngenta Crop Protection Ag 53
3 Theodorus Cornelis Maria van Kleinwee Syngenta Crop Protection Ag 44
#4 Theodorus Cornelis Maria Van Kleinwee 42
#5 Anna M. W. P. Houbraken Syngenta Seeds B.V. 28
#6 Carla Moonen Kieft Seeds Holland 17
#7 Wouter Lindeman Enza Zaden Beheer B.V. 16
#8 Folkert Hoekstra Foremostco. 14
#9 Martien Everett Gutter Syngenta Seeds B.V. 13
#10 Silvan Adelmar Kamstra Syngenta Crop Protection Ag 12
#11 Marco Bakker Tomtom International B.V. 10
#11 Johannes Jacobus Ludgerus Gielen Syngenta Participations Ag 10
#11 Erik Smit Goldsmith Seeds Europe B.V. 10
#14 Andreas Hoogeveen Driessen Aerospace Group N.V. 9
#15 Peter Jeroen Cloos Akzo Nobel N.V. 8
#15 William Briggs Syngenta Participations Ag 8
#15 Jacob Pieter Mazereeuw Enza Zaden Beheer B.V. 8
#18 Agnes Chardonnens Basf Plant Science Company Gmbh 7
#18 Stijn Van Der Upwich 7
#20 Petrus Karsten Solvay (Société Anonyme) 6
#20 Karin Ingeborg Posthuma Enza Zaden Beheer B.V. 6
#20 Kathryn Verlinden Syngenta Participations Ag 6
#20 Paul Van Den Wijngaard Syngenta Participations Ag 6
#20 Enrico Gerardus Albertus Linders Syngenta Participations Ag 6
#20 Peter Tjeertes Syngenta Participations Ag 6
#26 Jérôme Garnier Synergia Medical 5
#26 Frans van den Toorn 5
#26 Alle D. Mulder Royal Sluis B.V. 5
#26 Iris Heidmann Enza Zaden Beheer B.V. 5
#26 François Van Hee Ball Floraplant, A Division Of Ball Horticultural 5
#26 Tonko Gerhard Bruggink Syngenta Participations Ag 5
#26 Jolanda Krassenburg Ball Horticultural 5
#33 Joost Verbeek Johnson & Johnson 4
#33 Peter Van der Toorn Sandoz Ag 4
#33 Anton Arnold Van Der Heiden Enza Zaden Beheer B.V. 4
#33 Annemarie Houbraken Syngenta Seeds B.V. 4
#33 Johannes Maria De Haas Syngenta Participations Ag 4
#33 Johannes T. Brugmans Koninklijke Emballage Industrie Van Leer Bv 4
#33 Robert Jean Legro 4
#40 Arnoldus Johannes Kool Novartis Finance 3
#40 Cai-Cheng Huang Syngenta Participations Ag 3
#40 Cornelis Walter Verweij Enza Zaden Beheer B.V. 3
#40 Maarten de Milliano Seminis Vegetable Seeds 3
#40 Petrus Johannes Antonius Karsten Renolit Se 3
#40 Simon Groen Syngenta Participations Ag 3
#40 Franciscus Cornelis Lanfermeijer Syngenta Participations Ag 3
#40 Eric Van Der Drift Syngenta Crop Protection Ag 3
#40 Remko Schiphorst Zodiac Aerotechnics 3
#40 Simon AIGNER Enza Zaden Beheer B.V. 3
#50 Cornelis Jacob De Jong 2