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Andreas Krebs
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Odenthal, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Process for the enantiomeric enrichment of cis-8-benzyl-7,9-dioxo-2...
Patent number
7,709,644
Issue date
May 4, 2010
LANXESS Deutschland GmbH
Herbert Diehl
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Racemization of R,S-dioxo-benzylpyrrolopiperidine
Patent number
6,392,044
Issue date
May 21, 2002
Bayer Aktiengesellschaft
Herbert Diehl
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
3-hydroxy-4-aryl-5-oxo-pyrazoline derivatives
Patent number
6,221,810
Issue date
Apr 24, 2001
Bayer Aktiengesellschaft
Bernd-Wieland Kruger
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
7-isoindolinyl-quinolone derivatives and 7-isoindolinyl-naphthyrido...
Patent number
6,018,054
Issue date
Jan 25, 2000
Bayer Aktiengesellschaft
Thomas Philipps
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Enantiomerically pure 2-oxa-5,8-dizaabicyclo[4.3.0] nonanes and pro...
Patent number
6,004,956
Issue date
Dec 21, 1999
Bayer Aktiengesellschaft
Thomas Schenke
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing 3-chlorobenzisothiazoles
Patent number
5,883,258
Issue date
Mar 16, 1999
Bayer Aktiengesellschaft
Helmut Kraus
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
3-hydroxy-4-aryl-5-oxo-pyrazoline derivatives
Patent number
5,780,394
Issue date
Jul 14, 1998
Bayer Aktiengesellschaft
Bernd-Wieland Kruger
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
7-isoindolinyl-quinolone derivatives and 7-isoindolinyl-naphthyrido...
Patent number
5,739,339
Issue date
Apr 14, 1998
Bayer Aktiengesellschaft
Thomas Philipps
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Aryl carboxylic acid derivatives
Patent number
5,739,389
Issue date
Apr 14, 1998
Bayer Aktiengesellschaft
Bernd-Wieland Kruger
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of 7-(3-amino- and 3-amino-methyl-1-pyrrolidinyl)-3-qui...
Patent number
5,723,627
Issue date
Mar 3, 1998
Bayer Aktiengesellschaft
Uwe Petersen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
3-hydroxy-4-aryl-5-oxo-pyrazoline derivatives
Patent number
5,661,110
Issue date
Aug 26, 1997
Bayer Aktiengesellschaft
Bernd-Wieland Kruger
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of 7-(3-amino- and 3-amino-methyl-1-pyrrolidinyl)-3-qui...
Patent number
5,648,493
Issue date
Jul 15, 1997
Bayer Aktiengesellschaft
Uwe Petersen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
7-(1-pyrrolidinyl)-3-quinolone- and - naphthyridone-carboxylic acid...
Patent number
5,607,942
Issue date
Mar 4, 1997
Bayer Aktiengesellschaft
Uwe Petersen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
7-isoindolinyl-naphthyridone derivatives, compositions and anti-bac...
Patent number
5,556,979
Issue date
Sep 17, 1996
Bayer Aktiengesellschaft
Thomas Philipps
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Enantiomerically pure 2-oxa-5,8-diazabicyclo[4.3.0]nonanes and proc...
Patent number
5,532,364
Issue date
Jul 2, 1996
Bayer Aktiengesellschaft
Thomas Schenke
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Quinolonecarboxylic acids
Patent number
5,480,879
Issue date
Jan 2, 1996
Bayer Aktiengesellschaft
Uwe Petersen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
3-hydroxy-4-aryl-5-oxo-pyrazoline derivatives
Patent number
5,474,974
Issue date
Dec 12, 1995
Bayer Aktiengesellschaft
Bernd-Wieland Kruger
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
8-vinyl- and 9-ethinyl-quinolone-carboxylic acids
Patent number
5,468,742
Issue date
Nov 21, 1995
Bayer Aktiengesellschaft
Uwe Petersen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
7-isoindolinyl-quinolone-carboxylic acid derivatives
Patent number
5,464,796
Issue date
Nov 7, 1995
Bayer Aktiengesellschaft
Uwe Petersen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Quinolone- and naphthyridonecarboxylic acid derivatives
Patent number
5,457,104
Issue date
Oct 10, 1995
Bayer Aktiengesellschaft
Stephan Bartel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Enantiomerically pure 2-oxa-5,8-diazabicyclo[4.3.0]nonanes and proc...
Patent number
5,436,334
Issue date
Jul 25, 1995
Bayer Aktiengesellschaft
Thomas Schenke
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
7-(1-pyrrolidinyl)-3-quinolone carboxylic acid derivatives as antib...
Patent number
5,416,096
Issue date
May 16, 1995
Bayer Aktiengesellschaft
Uwe Petersen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
3-aryl-pyrone derivatives
Patent number
5,393,729
Issue date
Feb 28, 1995
Bayer Aktiengesellschaft
Reiner Fischer
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Naphthyridonecarboxylic acid derivatives
Patent number
5,371,090
Issue date
Dec 6, 1994
Bayer Aktiengesellschaft
Uwe Petersen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
3-hydroxy-4-aryl-5-oxo-pyrozoline derivatives, compositions and use
Patent number
5,358,924
Issue date
Oct 25, 1994
Bayer Aktiengesellschaft
Bernd-Wieland Kruger
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
3-hydroxy-4-aryl-5-oxo-pyrazoline derivatives
Patent number
5,332,720
Issue date
Jul 26, 1994
Bayer Aktiengesellschaft
Bernd-Wieland Kruger
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
7-azaisoindolinyl-quinolone-carboxylic acid derivatives
Patent number
5,312,823
Issue date
May 17, 1994
Bayer Aktiengesellschaft
Uwe Petersen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of alkyl N-(hydroxyalkyl)-carbamates
Patent number
5,304,650
Issue date
Apr 19, 1994
Bayer Aktiengesellschaft
Andreas Krebs
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
7-(2,7-diazabicyclo[3.3.0]octyl)-3-quinolone-and-naphthyridonecarbo...
Patent number
5,284,855
Issue date
Feb 8, 1994
Bayer Aktiengesellschaft
Uwe Petersen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Antibacterial 5-alkylquinolonecarboxylic acids
Patent number
5,252,734
Issue date
Oct 12, 1993
Bayer Aktiengesellschaft
Michael Schriewer
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
Process for the enantiomeric enrichment of cis-8-benzyl-7,9-dioxo-2...
Publication number
20070213536
Publication date
Sep 13, 2007
Herbert Diehl
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Process for the enantiomeric enrichment of cis-8-benzyl-7,9-dioxo-2...
Publication number
20040044205
Publication date
Mar 4, 2004
Herbert Diehl
C07 - ORGANIC CHEMISTRY