Growing community of inventors

Butzbach, Germany

Berthold Kalkus

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 = 16

Berthold KalkusDieter Hofmann (1 patent)Berthold KalkusBerthold Kalkus (1 patent)Dieter HofmannDieter Hofmann (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Schoeller & Co. (1 from 4 patents)

2. Elektrotechnische Fabrik Gmbh & Co. (1 from 3 patents)


1 patent:

1. 5382171 - Electric socket especially for motor vehicles

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as of
12/18/2025
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