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Ferdinand Hagedorn
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Leverkusen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Process for the preparation of 1-substituted 2,4-dinitrobenzenes
Patent number
6,198,007
Issue date
Mar 6, 2001
Bayer Aktiengesellschaft
Lars Rodefeld
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Non-explosive preparations of 1-hydroxybenzotriazole
Patent number
5,998,628
Issue date
Dec 7, 1999
Bayer Aktiengesellschaft
Ferdinand Hagedorn
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 2-amino-6-chlorophenyl-alkylsulfanes...
Patent number
5,872,300
Issue date
Feb 16, 1999
Bayer Aktiengesellschaft
Ferdinand Hagedorn
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of (2RS,3RS)-3-(2'-aminophenylthio)-2-h...
Patent number
5,756,809
Issue date
May 26, 1998
Bayer Aktiengesellschaft
Ferdinand Hagedorn
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 2,4-dichloro-5-fluorobenzonitrile an...
Patent number
5,670,694
Issue date
Sep 23, 1997
Bayer Aktiengesellschaft
Ferdinand Hagedorn
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 4-fluorothiophenol
Patent number
5,659,088
Issue date
Aug 19, 1997
Bayer Aktiengesellschaft
Helmut Fiege
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 2-chloro-6-nitrophenyl alkyl sulphid...
Patent number
5,650,542
Issue date
Jul 22, 1997
Bayer Aktiengesellschaft
Helmut Fiege
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of methylene compounds and the novel co...
Patent number
5,591,869
Issue date
Jan 7, 1997
Bayer Aktiengesellschaft
Helmut Fiege
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing 2,2'-dinitrodiphenyl disulphide
Patent number
5,502,256
Issue date
Mar 26, 1996
Bayer Aktiengesellschaft
Ferdinand Hagedorn
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for desulphurizing organic mercapto and/or disulphide compo...
Patent number
5,463,068
Issue date
Oct 31, 1995
Bayer Aktiengesellschaft
Ferdinand Hagedorn
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing nitrodiphenyl (thio) ethers
Patent number
5,382,686
Issue date
Jan 17, 1995
Bayer Aktiengesellschaft
Ferdinand Hagedorn
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 5-amino-2,4-dimethylacetanilide
Patent number
4,540,817
Issue date
Sep 10, 1985
Bayer Aktiengesellschaft
Horst Behre
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparation of anilines which are m-substituted by chlo...
Patent number
4,460,788
Issue date
Jul 17, 1984
Bayer Aktiengesellschaft
Karlfried Wedemeyer
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of m-halogen-substituted anilines
Patent number
4,429,156
Issue date
Jan 31, 1984
Bayer Aktiengesellschaft
Karlfried Wedemeyer
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of fused 1,2,3-triazoles
Patent number
4,424,360
Issue date
Jan 3, 1984
Bayer Aktiengesellschaft
Ferdinand Hagedorn
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of sulphonic acid chlorides
Patent number
4,316,862
Issue date
Feb 23, 1982
Bayer Aktiengesellschaft
Wolfgang Schenk
C07 - ORGANIC CHEMISTRY