Growing community of inventors

Neuss, Germany

Norbert Grotschel

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 = 8

Norbert GrotschelOswald Reuss (1 patent)Norbert GrotschelHorst Breuer (1 patent)Norbert GrotschelNorbert Grotschel (1 patent)Oswald ReussOswald Reuss (13 patents)Horst BreuerHorst Breuer (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Preh-werke Gmbh Co. Kg (1 from 70 patents)

2. Pierburg Ag (1 from 32 patents)


1 patent:

1. 5765435 - Apparatus for indicating fuel level in a fuel tank

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12/19/2025
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