{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Cities", "item": "https://www.patentleaderboard.com/cities"}, {"@type": "ListItem", "position": 3, "name": "California", "item": "https://www.patentleaderboard.com/state/california"}, {"@type": "ListItem", "position": 4, "name": "Cologne, DE", "item": "https://www.patentleaderboard.com/city/cologne-de-de-2"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Cologne, DE ranks #7,035 worldwide for total patents filed all time, with 336 patents from 17 inventors. Leading employers of inventors based in Cologne, DE include Ford, Cisco, Luxtera.

Showing 1–17 of 17 inventors

Rank Inventor Primary Company Patents
1 Stefan Lamm Ford 107
2 Frank Brockners Cisco 79
3 Jeremy Witzens Luxtera 34
#4 Michael Hill Clariant Finance (Bvi) Limited 32
#5 Florian Barth Papacks Sales Gmbh 12
#6 Emanuel Vogel Cytopharm 10
#7 Paul F. Kramer Mountain Hardwear 9
#8 Detmar Redeker Wolff Walsrode Ag 8
#8 Michael Wirtz US Air Force 8
#10 Burkhard Braun Bayer Healthcare 6
#10 Michael Van Huynh Osterhout Group 6
#12 Frank D. Braun Intel 5
#12 Markus Hagen Max-Planck-Gesellschaft Zur Föderung Der Wissenschaften E.V. 5
#14 Claus Schmitz Ford 4
#14 Martin Muhlhoff Leybold Gmbh 4
#14 Michael E. Janzen Scoliwrx 4
#17 Andreas Linkwitz Alza 3

Part of California