Growing community of inventors

Muenster, Germany

Helga Kreher

Average Co-Inventor Count = 4.00

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 = 39

Helga KreherDirk Lauscher (2 patents)Helga KreherPetra Braun (1 patent)Helga KreherGabriele Hess (1 patent)Helga KreherHerbert Deutz (1 patent)Helga KreherAnnelie Doehling (1 patent)Helga KreherJoerg Schmidt (1 patent)Helga KreherHelga Kreher (2 patents)Dirk LauscherDirk Lauscher (6 patents)Petra BraunPetra Braun (8 patents)Gabriele HessGabriele Hess (4 patents)Herbert DeutzHerbert Deutz (4 patents)Annelie DoehlingAnnelie Doehling (3 patents)Joerg SchmidtJoerg Schmidt (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Wella Aktiengesellschaft (2 from 433 patents)


2 patents:

1. 7749283 - Colorant with nacreous luster for keratin fibers

2. 6365136 - Compositions for removing or lightening hair color

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1/4/2026
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