Growing community of inventors

Essen, Germany

Andreas Landgraf

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 = 11

Andreas LandgrafPetra Allef (1 patent)Andreas LandgrafMarcel Veeger (1 patent)Andreas LandgrafSusann Wiechers (1 patent)Andreas LandgrafWolfgang Roecher (1 patent)Andreas LandgrafAndreas Landgraf (1 patent)Petra AllefPetra Allef (25 patents)Marcel VeegerMarcel Veeger (17 patents)Susann WiechersSusann Wiechers (3 patents)Wolfgang RoecherWolfgang Roecher (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Evonik Stockhausen Gmbh (1 from 79 patents)


1 patent:

1. 8466097 - Abrasive agent based on natural raw ingredients, having properties improving rheology

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12/9/2025
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