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Karl-Herbert Fritsch
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Bergisch-Gladbach, DE
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last 30 patents
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Patent Grant
Polycarbonate from dihydroxydiphenyl cycloalkane
Patent number
5,227,458
Issue date
Jul 13, 1993
Bayer Aktiengesellschaft
Dieter Freitag
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polycarbonate from dihydroxy diphenyl cycloalkane
Patent number
5,126,428
Issue date
Jun 30, 1992
Bayer Aktiengesellschaft
Dieter Freitag
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Stabilized copolycarbonate from dihydroxy diphenyl cycloalkane
Patent number
5,086,159
Issue date
Feb 4, 1992
Bayer Aktiengesellschaft
Karl-Herbert Fritsch
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Dihydroxydiphenyl cycloalkanes, their production and their use for...
Patent number
4,982,014
Issue date
Jan 1, 1991
Bayer Aktiengesellschaft
Dieter Freitag
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of polyamide mouldings
Patent number
4,859,390
Issue date
Aug 22, 1989
Bayer Aktiengesellschaft
Karl H. Fritsch
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Preparation of high molecular weight polyarylene sulfide with mixin...
Patent number
4,794,162
Issue date
Dec 27, 1988
Bayer Aktiengesellschaft
Edgar Ostlinning
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of polycarbonate injection-moulded shape...
Patent number
4,699,745
Issue date
Oct 13, 1987
Bayer Aktiengesellschaft
Karl-Herbert Fritsch
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL