Growing community of inventors

Sennfeld, Germany

Stefan Keller

Average Co-Inventor Count = 6.00

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 2

Stefan KellerMatthias Cudok (1 patent)Stefan KellerAlexander Schäflein (1 patent)Stefan KellerChristian Brückner (1 patent)Stefan KellerMatthias Weidner (1 patent)Stefan KellerUdo Niehaus (1 patent)Stefan KellerWolfgang Purretat (0 patent)Stefan KellerStefan Keller (1 patent)Matthias CudokMatthias Cudok (6 patents)Alexander SchäfleinAlexander Schäflein (6 patents)Christian BrücknerChristian Brückner (5 patents)Matthias WeidnerMatthias Weidner (5 patents)Udo NiehausUdo Niehaus (2 patents)Wolfgang PurretatWolfgang Purretat (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Zf Friedrichshafen Ag (1 from 3,427 patents)


1 patent:

1. 9318929 - Electric machine having a power connection unit

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as of
12/8/2025
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