Growing community of inventors

Hattingen, Germany

Walter Siepermann

Average Co-Inventor Count = 2.00

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 = 6

Walter SiepermannHans-Georg Bergendahl (1 patent)Walter SiepermannWalter Siepermann (1 patent)Hans-Georg BergendahlHans-Georg Bergendahl (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Maschinefabrik Koppern Gmbh & Co. K.g. (1 from 2 patents)


1 patent:

1. 4395944 - Two roll press

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12/20/2025
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