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Gunter Stammann
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Cologne, DE
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last 30 patents
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Patent Grant
Process for the regeneration of catalysts for the gas-phase reducti...
Patent number
4,714,689
Issue date
Dec 22, 1987
Bayer Aktiengesellschaft
Gunter Stammann
C07 - ORGANIC CHEMISTRY
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 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