Growing community of inventors

Castrop-Rauxel, Germany

Frank Kratzke

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

Frank KratzkeHarald Bitsch (1 patent)Frank KratzkeFrank Kratzke (1 patent)Harald BitschHarald Bitsch (14 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mannesmann Aktiengesellschaft (1 from 1,150 patents)


1 patent:

1. 5156069 - Transmission box

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as of
12/16/2025
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