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Wolfram Kissener
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Bergisch Gladbach, DE
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Patents Grants
last 30 patents
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Patent Grant
2-phenylbenzimidazole-5-sulphonic acid from isolated 3,4-diaminoben...
Patent number
6,888,005
Issue date
May 3, 2005
Bayer Aktiengesellschaft
Günter Rauchschwalbe
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Process for the preparation of isolated 3,4-diaminobenzenesulphonic...
Patent number
6,787,666
Issue date
Sep 7, 2004
Bayer Chemicals AG
Günter Rauchschwalbe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 5-fluoro-2-nitrobenzoic acid
Patent number
5,756,831
Issue date
May 26, 1998
Bayer Aktiengesellschaft
Wolfram Kissener
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 3-chloro-3'-Nitro-4'-Methoxybenzophe...
Patent number
5,741,936
Issue date
Apr 21, 1998
Bayer Aktiengesellschaft
Klaus-Christian Paetz
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for separating mixtures of nitrobenzaldehyde isomers
Patent number
5,567,854
Issue date
Oct 22, 1996
Bayer Aktiengesellschaft
Wolfram Kissener
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 2,3-dichloro-nitrobenzene
Patent number
5,475,163
Issue date
Dec 12, 1995
Bayer Aktiengesellschaft
Karl H. Neumann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 2,4- or 2,6-dihalogeno-aniline
Patent number
5,145,958
Issue date
Sep 8, 1992
Bayer Aktiengesellschaft
Wolfram Kissener
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of N,N-diaryl-ureas
Patent number
4,820,871
Issue date
Apr 11, 1989
Bayer Aktiengesellschaft
Wolfram Kissener
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
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Patent Application
METHOD FOR THE NITRATION OF SUBSTITUTED BENZENES IN THE PRESENCE OF...
Publication number
20100331570
Publication date
Dec 30, 2010
SALTIGO GMBH
Reinhard Langer
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Process for the preparation of isolated 3,4-diaminobenzenesulphonic...
Publication number
20040059126
Publication date
Mar 25, 2004
Gunter Rauchschwalbe
C07 - ORGANIC CHEMISTRY