Growing community of inventors

Reinbek, Germany

Gerhard Siefert

Average Co-Inventor Count = 4.00

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

Gerhard Siefert ↔ Roland Gerlach (1 patent)Gerhard Siefert ↔ Claus Freimuth (1 patent)Gerhard Siefert ↔ Alfred Fischer (1 patent)Gerhard SiefertGerhard Siefert (1 patent)Roland GerlachRoland Gerlach (2 patents)Claus FreimuthClaus Freimuth (1 patent)Alfred FischerAlfred Fischer (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Claudius Peters Ag (1 from 39 patents)


1 patent:

1. 4558985 - Pump with screw conveyors on each end

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as of
12/19/2025
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