Growing community of inventors

Wuppertal, Germany

Marcel Semrau

Average Co-Inventor Count = 6.46

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 = 0

Marcel SemrauJames H Buchwitz (2 patents)Marcel SemrauLucas R Salfer (2 patents)Marcel SemrauDerek D Zimney (2 patents)Marcel SemrauTim Keller (2 patents)Marcel SemrauKarsten Scholle (2 patents)Marcel SemrauClifton J Seusy (1 patent)Marcel SemrauMarcel Semrau (2 patents)James H BuchwitzJames H Buchwitz (21 patents)Lucas R SalferLucas R Salfer (15 patents)Derek D ZimneyDerek D Zimney (14 patents)Tim KellerTim Keller (2 patents)Karsten ScholleKarsten Scholle (2 patents)Clifton J SeusyClifton J Seusy (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Polaris Industries Inc. (2 from 884 patents)


2 patents:

1. 12006860 - Turbocharger system for a two-stroke engine

2. 11174779 - Turbocharger system for a two-stroke engine

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as of
12/8/2025
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