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Johann Grolig
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Leverkusen, DE
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last 30 patents
Information
Patent Grant
Catalytic process for preparing polycumylene from .alpha.-cumyl halide
Patent number
4,745,176
Issue date
May 17, 1988
Bayer Aktiengesellschaft
Robert Becker
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of substituted polyaryl ethers
Patent number
4,705,843
Issue date
Nov 10, 1987
Bayer Aktiengesellschaft
Gunter Stammann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of urethanes
Patent number
4,593,116
Issue date
Jun 3, 1986
Bayer Aktiengesellschaft
Gunter Stammann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of urethanes
Patent number
4,582,923
Issue date
Apr 15, 1986
Bayer Aktiengesellschaft
Gunter Stammann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 2,3-dimethylbutane-2,3-diol
Patent number
4,410,743
Issue date
Oct 18, 1983
Bayer Aktiengesellschaft
Klaus G. Wilms
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of carbonic acid esters
Patent number
4,370,275
Issue date
Jan 25, 1983
Bayer Aktiengesellschaft
Gunter Stammann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of urethanes
Patent number
4,339,592
Issue date
Jul 13, 1982
Bayer Aktiengesellschaft
Robert Becker
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for the preparation of urethane
Patent number
4,304,922
Issue date
Dec 8, 1981
Bayer Aktiengesellschaft
Robert Becker
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of urethanes
Patent number
4,297,501
Issue date
Oct 27, 1981
Bayer Aktiengesellschaft
Robert Becker
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of urethanes
Patent number
4,262,130
Issue date
Apr 14, 1981
Bayer Aktiengesellschaft
Robert Becker
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for the production of urethanes
Patent number
4,219,661
Issue date
Aug 26, 1980
Bayer Aktiengesellschaft
Robert Becker
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for the purification of crude anthraquinone
Patent number
4,155,922
Issue date
May 22, 1979
Bayer Aktiengesellschaft
Rupert Wenzel
C07 - ORGANIC CHEMISTRY