Growing community of inventors

Aachen, Germany

Christian Steffens

Average Co-Inventor Count = 7.63

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 = 1

Christian Steffens ↔ Claus Dreisbach (3 patents)Christian Steffens ↔ Thomas Prinz (3 patents)Christian Steffens ↔ Guido Giffels (3 patents)Christian Steffens ↔ Joachim Kralik (3 patents)Christian Steffens ↔ Inga Ritzkopf (3 patents)Christian Steffens ↔ Walter Lange (2 patents)Christian Steffens ↔ Birgit Driessen-Hölscher (2 patents)Christian Steffens ↔ Birgit Drieben-Hölscher (1 patent)Christian SteffensChristian Steffens (3 patents)Claus DreisbachClaus Dreisbach (18 patents)Thomas PrinzThomas Prinz (14 patents)Guido GiffelsGuido Giffels (11 patents)Joachim KralikJoachim Kralik (5 patents)Inga RitzkopfInga Ritzkopf (3 patents)Walter LangeWalter Lange (24 patents)Birgit Driessen-HölscherBirgit Driessen-Hölscher (2 patents)Birgit Drieben-HölscherBirgit Drieben-Hölscher (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Bayer Aktiengesellschaft (3 from 12,165 patents)


3 patents:

1. 6844462 - Biphenydiols

2. 6566298 - Diphosphines

3. 6462200 - Diphosphines

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as of
1/7/2026
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