Klaus-Peter Langhans

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Wuppertal, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of tertiary phosphines
- Patent number 5,268,479
- Issue date Dec 7, 1993
- Hoechst Aktiengesellschaft
- Othmar Stelzer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of phosphanes
- Patent number 5,003,108
- Issue date Mar 26, 1991
- Hoechst Aktiengesellschaft
- Othmar Stelzer
- C07 - ORGANIC CHEMISTRY