Growing community of inventors

Wuppertal, Germany

Klaus-Peter Langhans

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 = 4

Klaus-Peter Langhans ↔ Norbert Weferling (2 patents)Klaus-Peter Langhans ↔ Othmar Stelzer (2 patents)Klaus-Peter Langhans ↔ Jurgen Svara (1 patent)Klaus-Peter LanghansKlaus-Peter Langhans (2 patents)Norbert WeferlingNorbert Weferling (36 patents)Othmar StelzerOthmar Stelzer (6 patents)Jurgen SvaraJurgen Svara (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hoechst Aktiengesellschaft (2 from 6,662 patents)


2 patents:

1. 5268479 - Process for the preparation of tertiary phosphines

2. 5003108 - Process for the preparation of phosphanes

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1/22/2026
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