Growing community of inventors

Moenchengladbach, Germany

Silvia Stapper-Druyen

Average Co-Inventor Count = 5.00

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 = 0

Silvia Stapper-Druyen ↔ Ulrich Eicken (1 patent)Silvia Stapper-Druyen ↔ Raymond Mathis (1 patent)Silvia Stapper-Druyen ↔ Wolfgang Becker (1 patent)Silvia Stapper-Druyen ↔ Karin Robrahn (1 patent)Silvia Stapper-DruyenSilvia Stapper-Druyen (1 patent)Ulrich EickenUlrich Eicken (22 patents)Raymond MathisRaymond Mathis (19 patents)Wolfgang BeckerWolfgang Becker (5 patents)Karin RobrahnKarin Robrahn (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Henkel Ag & Company, Kgaa (1 from 4,427 patents)


1 patent:

1. 5439709 - Fatty acid methyl esters in lubricants for card spinning

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1/23/2026
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