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Helmut Heitzer
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Leverkusen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Process for the preparation of 2-halogenopyridinealdehydes and nove...
Patent number
5,708,180
Issue date
Jan 13, 1998
Bayer Aktiengesellschaft
Gunther Beck
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
1-trifluoromethyl-1-nitro-2-alkoxy-2-aryl-ethanes, their preparatio...
Patent number
5,258,394
Issue date
Nov 2, 1993
Bayer Aktiengesellschaft
Bernd Baasner
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Substituted benzoxazepines and benzothiazepines
Patent number
5,221,681
Issue date
Jun 22, 1993
Bayer Aktiengesellschaft
Hans-Joachim Kabbe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Fluoromethylated polycyanobenzenes, their alkali metal cyanide addu...
Patent number
5,175,336
Issue date
Dec 29, 1992
Bayer Aktiengesellschaft
Gunther Beck
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
1-trifluoromethyl-1-nitro-2-alkoxy-2-aryl-ethanes, their preparatio...
Patent number
5,066,681
Issue date
Nov 19, 1991
Bayer Aktiengesellschaft
Bernd Baasner
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of 2-chloro-5-chloromethylthiazole
Patent number
4,748,243
Issue date
May 31, 1988
Bayer Aktiengesellschaft
Gunther Beck
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
4,5-Dichloroimidazole-2-carboxylic acid derivatives
Patent number
4,369,186
Issue date
Jan 18, 1983
Bayer Aktiengesellschaft
Gunther Beck
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Plant growth regulant compositions
Patent number
4,350,520
Issue date
Sep 21, 1982
Bayer Aktiengesellschaft
Gunther Beck
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Novel acyloxamides and plant growth regulant compositions
Patent number
4,293,331
Issue date
Oct 6, 1981
Bayer Aktiengesellschaft
Gunther Beck
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information
Patent Grant
Benzodiazepine-diones, a process for their production and their use...
Patent number
4,187,306
Issue date
Feb 5, 1980
Bayer Aktiengesellschaft
Karl H. Mayer
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
4,5-Dichloroimidazole-2-carboxylic acid derivatives
Patent number
4,179,277
Issue date
Dec 18, 1979
Bayer Aktiengesellschaft
Gunther Beck
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 2,4,5-trichloropyrimidine
Patent number
4,171,442
Issue date
Oct 16, 1979
Bayer Aktiengesellschaft
Gunther Beck
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 2,4,5-trichloropyrimidine
Patent number
4,140,857
Issue date
Feb 20, 1979
Bayer Aktiengesellschaft
Gunther Beck
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of tetrachloropyrimidine
Patent number
4,125,723
Issue date
Nov 14, 1978
Bayer Aktiengesellschaft
Gunther Beck
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of tetrachloropyrimidine
Patent number
4,125,722
Issue date
Nov 14, 1978
Bayer Aktiengesellschaft
Gunther Beck
C07 - ORGANIC CHEMISTRY