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Heinz-Jurgen Alpers
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Krefeld, DE
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last 30 patents
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Patent Grant
Process for the preparation of aliphatic .alpha., .omega.-diols
Patent number
5,696,303
Issue date
Dec 9, 1997
Bayer Aktiengesellschaft
Gerhard Darsow
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Distillation column with vaporous sidestream removal
Patent number
5,336,376
Issue date
Aug 9, 1994
Bayer Aktiengesellschaft
Siegfried Taurat
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Patent Grant
Process for the preparation of aqueous formaldehyde solutions
Patent number
4,990,685
Issue date
Feb 5, 1991
Bayer Aktiengesellschaft
Heinz-Jurgen Alpers
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Vanadium/phosphorus mixed oxide catalyst, process for its preparato...
Patent number
4,784,981
Issue date
Nov 15, 1988
Bayer Aktiengesellschaft
Heinz-Jurgen Alpers
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of formaldehyde
Patent number
4,098,826
Issue date
Jul 4, 1978
Bayer Aktiengesellschaft
Heinz-Jurgen Alpers
C07 - ORGANIC CHEMISTRY