Growing community of inventors

Gelsenkirchen, Germany

Dirk Retzkowski

Average Co-Inventor Count = 3.43

ph-index = 2

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 = 37

Dirk Retzkowski ↔ Jose Agustin Paya (2 patents)Dirk Retzkowski ↔ Erwin Stallwitz (1 patent)Dirk Retzkowski ↔ Klaus Rodiger (1 patent)Dirk Retzkowski ↔ Klaus Mader (1 patent)Dirk RetzkowskiDirk Retzkowski (2 patents)Jose Agustin PayaJose Agustin Paya (10 patents)Erwin StallwitzErwin Stallwitz (5 patents)Klaus RodigerKlaus Rodiger (3 patents)Klaus MaderKlaus Mader (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Widia Gmbh (2 from 67 patents)


2 patents:

1. 5951215 - Polygonal cotting insert

2. 5779401 - Cutting insert

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idiyas.com
as of
1/19/2026
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