Growing community of inventors

Aachen, Germany

Ottmar Krettek

Average Co-Inventor Count = 3.00

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

Ottmar KrettekHermann Ortwein (1 patent)Ottmar KrettekJohannes Nicolin (1 patent)Ottmar KrettekOttmar Krettek (1 patent)Hermann OrtweinHermann Ortwein (9 patents)Johannes NicolinJohannes Nicolin (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Clouth Gummiwerke Aktiengesellschaft (1 from 20 patents)


1 patent:

1. 4637646 - Wheel set for rail vehicles

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as of
1/13/2026
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