Growing community of inventors

Wuppertal, Germany

Wolfgang Collas

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 = 18

Wolfgang CollasGunter Wolfertz (1 patent)Wolfgang CollasRoger Wolfertz (1 patent)Wolfgang CollasWolfgang Collas (1 patent)Gunter WolfertzGunter Wolfertz (3 patents)Roger WolfertzRoger Wolfertz (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Schaeffer Gmbh (1 from 3 patents)


1 patent:

1. 4928362 - Button, particularly for articles of clothing

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1/17/2026
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