Growing community of inventors

Erkelenz, Germany

Achim Lison

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 = 2

Achim LisonHelmut Wittkopp (1 patent)Achim LisonAchim Lison (1 patent)Helmut WittkoppHelmut Wittkopp (15 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Wilhelm Hegenscheidt Gmbh (1 from 15 patents)


1 patent:

1. 4119001 - Method of and machine for reprofiling a railroad-car wheel

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12/20/2025
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