Growing community of inventors

Hamburg, Germany

Sandra Rohweder

Average Co-Inventor Count = 3.60

ph-index = 2

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 = 15

Sandra RohwederWolfgang Wolff (3 patents)Sandra RohwederMustafa Akram (2 patents)Sandra RohwederStefan Hoepfner (1 patent)Sandra RohwederStephan Schwartz (1 patent)Sandra RohwederHolger Bartels (1 patent)Sandra RohwederSandra Rohweder (3 patents)Wolfgang WolffWolfgang Wolff (8 patents)Mustafa AkramMustafa Akram (23 patents)Stefan HoepfnerStefan Hoepfner (17 patents)Stephan SchwartzStephan Schwartz (6 patents)Holger BartelsHolger Bartels (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hans Schwarzkopf Gmbh & Co. Kg (3 from 10 patents)


3 patents:

1. 7255718 - Phosphate-type tensides combined with hair conditioning agents in hair coloring compositions

2. 6485528 - Agents for treating keratin fibers

3. 6139853 - Hair colorants and an application mixture for coloring human hair

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idiyas.com
as of
12/29/2025
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