Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Erlangen, DE ranks #254 worldwide for total patents filed in 2021, with 541 patents from 330 inventors. Leading employers of inventors based in Erlangen, DE include Siemens Healthcare Limited, Siemens Aktiengesellschaft, Fraunhofer.

Showing 1–50 of 330 inventors

Rank Inventor Primary Company Patents
1 Mario Zeller Siemens Healthcare Limited 20
2 David Grodzki Siemens Aktiengesellschaft 7
2 Stephan Biber Siemens Aktiengesellschaft 7
2 Emmanuel Ravelli Fraunhofer 7
2 Josef Bernhard Fraunhofer 7
2 Gerd Kilian Fraunhofer 7
#7 Andreas Greiser Siemens Aktiengesellschaft 6
#7 Christian Meixner Audi Ag 6
#7 Stefan Popescu Siemens Aktiengesellschaft 6
#10 Hartmut Krehmer Schaeffler 5
#10 Joachim Keinert IBM 5
#10 Markus Landmann Fraunhofer 5
#10 Thomas Lautenbacher Diehl Metering Systems Gmbh 5
#10 Rudolf Elpelt Infineon Technologies Ag 5
#10 Homayoun Kamkar-Parsi 5
#10 Leon Terentiv Fraunhofer 5
#10 Jürgen Nistler Siemens Aktiengesellschaft 5
#10 Bernd Zippelius Infineon Technologies Ag 5
#10 Jürgen Herre Fraunhofer 5
#20 Marcus Grossmann Fraunhofer 4
#20 Stefan Heinrich Conti Temic Microelectronic Gmbh 4
#20 Gregor Koerzdoerfer Siemens Healthcare Limited 4
#20 Dominik Neumann Siemens Healthcare Limited 4
#20 Heinrich Milosiu Fraunhofer 4
#25 Bernd Edler Fraunhofer 3
#25 Johannes Arendt Fraunhofer 3
#25 Alto Stemmer Siemens Aktiengesellschaft 3
#25 Peter Zierer Schaeffler 3
#25 Emanuel Habets Fraunhofer 3
#25 Alexander Adami Fraunhofer 3
#25 Herbert Thoma Fraunhofer 3
#25 Jan Andersson Siemens Aktiengesellschaft 3
#25 Larissa Wehrhahn-Kilian Infineon Technologies Ag 3
#25 Andreas Potthast Siemens Aktiengesellschaft 3
#25 Kim Peter Winterwerber Berlin Heart Gmbh 3
#25 Norbert Trost Thermo Fisher 3
#25 Andre de Oliveira Siemens Healthcare Limited 3
#25 Heinz Mueller Biotronik Vi Patent Ag 3
#25 Peter Wasserscheid The Procter & Gamble 3
#25 Christian Rohde Fraunhofer 3
#41 Marco Breiling Fraunhofer 2
#41 Nicolas Soellner Siemens Aktiengesellschaft 2
#41 Dietmar Kissinger Ihp Gmbh—Innovations For High Performance Microelectronics / Leibniz-Institut Für Innovative Mikroelektronik 2
#41 Michael Hell Infineon Technologies Ag 2
#41 Henning Puder Sivantos Pte. 2
#41 Anja Fritzler Siemens Healthcare Limited 2
#41 Kai Herbst Heraeus Deutschland 2
#41 Andre AICHERT Siemens Healthcare Limited 2
#41 Khaled Shawky HASSAN HUSSEIN Fraunhofer 2
#41 Michael Hosemann Siemens Healthcare Limited 2