Josef Bremen

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Leverkusen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the alkylation of 3,4-dihydroxythiophene-2,5-dicarboxyl...
- Patent number 6,750,354
- Issue date Jun 15, 2004
- Bayer Aktiengesellschaft
- Günter Rauchschwalbe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Removal of water from reaction mixtures
- Patent number 5,976,324
- Issue date Nov 2, 1999
- Bayer Aktiengesellschaft
- Andreas Groschl
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of .beta.-aminoethyl ketones
- Patent number 4,695,652
- Issue date Sep 22, 1987
- Bayer Aktiengesellschaft
- Florin Seng
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Benzofuranyl-benzimidazoles
- Patent number 4,271,293
- Issue date Jun 2, 1981
- Bayer Aktiengesellschaft
- Josef Bremen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of benzimidazolylbenzofuranes
- Patent number 4,268,670
- Issue date May 19, 1981
- Bayer Aktiengesellschaft
- Bernhard Wehling
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Process for the alkylation of 3,4-dihydroxythiophene-2,5-dicarboxyl...
- Publication number 20030097007
- Publication date May 22, 2003
- Gunter Rauchschwalbe
- C07 - ORGANIC CHEMISTRY