Growing community of inventors

Bremen, Germany

Volkmar Jahn

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 = 5

Volkmar JahnFriedrich Schittek (1 patent)Volkmar JahnVolkmar Jahn (1 patent)Friedrich SchittekFriedrich Schittek (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Gustav F. Gerdts Kg (1 from 13 patents)

2. Gestra-ksb Vertriebsgesellschaft Mbh & Co. Kommanditgesellschaft (1 from 3 patents)


1 patent:

1. 4339075 - Bimetallic-controlled steam trap

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as of
12/17/2025
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