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Gross-Bieberau, Germany

Herbert Lorenz

Average Co-Inventor Count = 2.18

ph-index = 4

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 = 62

Herbert LorenzJurgen Tennigkeit (4 patents)Herbert LorenzHirotsugu Segawa (1 patent)Herbert LorenzHerbert Lorenz (4 patents)Jurgen TennigkeitJurgen Tennigkeit (12 patents)Hirotsugu SegawaHirotsugu Segawa (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Goldwell Gmbh (3 from 21 patents)

2. Goldwell Gmbh Chemische Fabrik H.e. Dotter (1 from 5 patents)


4 patents:

1. 5053051 - Means and method for the oxidative dyeing, especially the redyeing, of

2. 5006127 - Agent for the oxidative dyeing of hair, method for the preparation of

3. 4992077 - Agent for the oxidative dyeing of hair, method for the preparation of

4. 4776856 - Process and means for oxidized dyeing of hair using a manganese dioxide

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as of
12/10/2025
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