Growing community of inventors

Biberach, Germany

Norbert Promberger

Average Co-Inventor Count = 7.00

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 = 7

Norbert Promberger ↔ Helmut Pieper (1 patent)Norbert Promberger ↔ Gunther Engelhardt (1 patent)Norbert Promberger ↔ Johannes Keck (1 patent)Norbert Promberger ↔ Klaus Reinhold Noll (1 patent)Norbert Promberger ↔ Gerd Kruger (1 patent)Norbert Promberger ↔ Rainer Zimmermann (1 patent)Norbert PrombergerNorbert Promberger (1 patent)Helmut PieperHelmut Pieper (49 patents)Gunther EngelhardtGunther Engelhardt (28 patents)Johannes KeckJohannes Keck (16 patents)Klaus Reinhold NollKlaus Reinhold Noll (16 patents)Gerd KrugerGerd Kruger (15 patents)Rainer ZimmermannRainer Zimmermann (14 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Dr. Karl Thomae Gmbh (1 from 133 patents)


1 patent:

1. 4362738 - Esters and amides containing the

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as of
12/26/2025
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