Growing community of inventors

Niefern-Oeschelbronn, Germany

Siegfried Zepnik

Average Co-Inventor Count = 3.43

ph-index = 2

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 = 37

Siegfried ZepnikUwe Henn (2 patents)Siegfried ZepnikKurt Pfertner (1 patent)Siegfried ZepnikMatthias Aydt (1 patent)Siegfried ZepnikBodo Homann (1 patent)Siegfried ZepnikSiegfried Zepnik (2 patents)Uwe HennUwe Henn (7 patents)Kurt PfertnerKurt Pfertner (25 patents)Matthias AydtMatthias Aydt (15 patents)Bodo HomannBodo Homann (12 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Dr. Ing. H.c. F. Porsche Aktiengesellschaft (2 from 4,049 patents)


2 patents:

1. 5641193 - Convertible passenger car

2. 5622382 - Rollover bar for a motor vehicle

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12/12/2025
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