Growing community of inventors

Kempen, Germany

Annika Siebers

Average Co-Inventor Count = 8.00

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 = 6

Annika Siebers ↔ Sascha Herrwerth (1 patent)Annika Siebers ↔ Michael Ewald (1 patent)Annika Siebers ↔ Erika Retzlaff (1 patent)Annika Siebers ↔ Thomas Veit (1 patent)Annika Siebers ↔ Tanja Joerres (1 patent)Annika Siebers ↔ Heiko Alzer (1 patent)Annika Siebers ↔ Ingrid Heussen (1 patent)Annika Siebers ↔ Ingrid Heußen (0 patent)Annika Siebers ↔ Tanja Jörres (0 patent)Annika SiebersAnnika Siebers (1 patent)Sascha HerrwerthSascha Herrwerth (28 patents)Michael EwaldMichael Ewald (13 patents)Erika RetzlaffErika Retzlaff (4 patents)Thomas VeitThomas Veit (4 patents)Tanja JoerresTanja Joerres (2 patents)Heiko AlzerHeiko Alzer (2 patents)Ingrid HeussenIngrid Heussen (1 patent)Ingrid HeußenIngrid Heußen (0 patent)Tanja JörresTanja Jörres (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Evonik Industries Ag (1 from 34 patents)

2. Evonik Degussa Gmbh (1,242 patents)


1 patent:

1. 9221945 - Liquid, adhesion-promoting additive and process for its preparation

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12/30/2025
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