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Karl-Ludwig Metzger
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Bergisch Gladbach, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Method for producing highly purified, granular silicium
Patent number
7,001,579
Issue date
Feb 21, 2006
Solarworld Aktiengesellschaft
Karl-Ludwig Metzger
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Electrochemical half-cell
Patent number
6,039,853
Issue date
Mar 21, 2000
Bayer Aktiengesellschaft
Fritz Gestermann
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
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
Quinolone- and naphthyridonecarboxylic acid derivatives
Patent number
5,990,122
Issue date
Nov 23, 1999
Bayer Aktiengesellschaft
Uwe Petersen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Quinolone- and naphthyridonecarboxylic acid derivatives
Patent number
5,986,105
Issue date
Nov 16, 1999
Bayer Aktiengesellschaft
Uwe Petersen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Intermediates for 7-amino-1-cyclopropyl-6,8-dihalogeno-1,4-dihydro-...
Patent number
5,969,141
Issue date
Oct 19, 1999
Bayer Aktiengesellschaft
Uwe Petersen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method of preserving materials using 4-methylene-2-amino-cyclopenta...
Patent number
5,770,622
Issue date
Jun 23, 1998
Bayer Aktiengesellschaft
Joachim Mittendorf
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Quinolone--and naphthyridonecarboxylic acid derivatives
Patent number
5,753,669
Issue date
May 19, 1998
Bayer Aktiengesellschaft
Uwe Peterson
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
Cyclopentane- and -pentene-.beta.-amino acids
Patent number
5,739,160
Issue date
Apr 14, 1998
Bayer Aktiengesellschaft
Joachim Mittendorf
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
8-amino-10-(azabicycloalkyl)-pyrido�1,2,3-d,e!�1,3,4!benzoxadiazine...
Patent number
5,679,675
Issue date
Oct 21, 1997
Bayer Aktiengesellschaft
Thomas Jaetsch
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
Cyclopentane- and -pentene-.beta.-amino acids
Patent number
5,631,291
Issue date
May 20, 1997
Bayer Aktiengesellschaft
Joachim Mittendorf
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of 7-(aminomethyl-oxa-7-aza-bicyclo[3.3.0]oct-7-yl) qui...
Patent number
5,621,105
Issue date
Apr 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
Quinolone-and naphthyridonecarboxylic acid derivatives
Patent number
5,605,910
Issue date
Feb 25, 1997
Bayer Aktiengesellschaft
Uwe Petersen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
7-(aminomethyl-oxa-7-aza-bicyclo[3.3.0]oct-7-yl)quinolonecarboxylic...
Patent number
5,574,161
Issue date
Nov 12, 1996
Bayer Aktiengesellschaft
Uwe Petersen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
7-amino-1-cyclopropyl-6,8-dihalogeno-1,4-dihydro-4-oxo-3-quinolinec...
Patent number
5,571,812
Issue date
Nov 5, 1996
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
Derivatives of 1-(2-fluorocyclopropyl)-quinolonecarboxylic acid and...
Patent number
5,545,642
Issue date
Aug 13, 1996
Bayer Aktiengesellschaft
Uwe Petersen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Pyrido[1,2,3-D,E] [1,3,4]benzoxadiazine derivatives
Patent number
5,508,278
Issue date
Apr 16, 1996
Bayer Aktiengesellschaft
Thomas Jaetsch
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
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
8-chloro-1-cyclopropyl-6,7-difluoro-1,4-dihydro-4-oxo-3-quinolineca...
Patent number
5,468,861
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
Quinolone- and naphthyridone carboxylic acid derivatives, process f...
Patent number
5,453,422
Issue date
Sep 26, 1995
Bayer Aktiengesellschaft
Uwe Petersen
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
7-(aminomethyl-oxa-7-aza-bicyclo[3.3.0]oct-7-yl)quinolonecarboxylic...
Patent number
5,395,944
Issue date
Mar 7, 1995
Bayer Aktiengesellschaft
Uwe Petersen
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
Method for producing highly purified, granular silicium
Publication number
20040052715
Publication date
Mar 18, 2004
Karl-Ludwig Metzger
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL