Dietrich Liebsch

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Leverkusen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of an iron catalyst and a process for t...
- Patent number 5,268,509
- Issue date Dec 7, 1993
- Bayer Aktiengesellschaft
- Otto Immel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of polyisocyanates containing uretdione...
- Patent number 4,994,541
- Issue date Feb 19, 1991
- Bayer Aktiengesellschaft
- Winfried Dell
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of phosgene with simultaneous generation...
- Patent number 4,764,308
- Issue date Aug 16, 1988
- Bayer Aktiengesellschaft
- Heinz Sauer
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Continuous process for the production of organic isocyanates
- Patent number 4,419,295
- Issue date Dec 6, 1983
- Bayer Aktiengesellschaft
- Hans-Joachim Hennig
- C07 - ORGANIC CHEMISTRY