Growing community of inventors

Essen, Germany

Stefan Kempka

Average Co-Inventor Count = 3.43

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 = 13

Stefan KempkaMatthias Seiler (1 patent)Stefan KempkaPeter Schwab (1 patent)Stefan KempkaSabine Giessler-Blank (1 patent)Stefan KempkaRene Haensel (1 patent)Stefan KempkaBernd Glöckler (1 patent)Stefan KempkaStefan Kempka (2 patents)Matthias SeilerMatthias Seiler (16 patents)Peter SchwabPeter Schwab (15 patents)Sabine Giessler-BlankSabine Giessler-Blank (9 patents)Rene HaenselRene Haensel (5 patents)Bernd GlöcklerBernd Glöckler (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Evonik Degussa Gmbh (1 from 1,242 patents)

2. Evonik Goldschmidt Corporation (1 from 80 patents)


2 patents:

1. 8932478 - Process for the absorption of a volatile substance in a liquid absorbent

2. 8580225 - Use of hydrophilic organomodified siloxanes as a processing aid for melt granulation

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12/28/2025
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