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Stephen Lachhein
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Hofheim am Taunus, DE
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last 30 patents
Information
Patent Grant
Process for the preparation of sulfonylureas
Patent number
5,414,084
Issue date
May 9, 1995
Hoechst Aktiengesellschaft
Lothar Willms
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Continuous process for the preparation of sulfonylisocyanates
Patent number
5,294,741
Issue date
Mar 15, 1994
Hoechst Aktiengesellschaft
Gunter Schlegel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of aminopyrimidines
Patent number
5,208,337
Issue date
May 4, 1993
Hoechst Aktiengesellschaft
Stephen Lachhein
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of phosphino compounds
Patent number
5,166,385
Issue date
Nov 24, 1992
Hoechst Aktiengesellschaft
Gunter Scheffel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of pyrazolecarboxylic acid derivatives
Patent number
5,159,086
Issue date
Oct 27, 1992
Hoechst Aktiengesellschaft
Stephen Lachhein
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of N-alkylsulfonylaminosulfonylureas
Patent number
5,157,121
Issue date
Oct 20, 1992
Hoechst Aktiengesellschaft
Stephen Lachhein
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of N-alkylsulfonylaminosulfonylureas
Patent number
5,155,222
Issue date
Oct 13, 1992
Hoechst Aktiengesellschaft
Stephen Lachhein
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of arylalkylmethylsilanes
Patent number
5,124,470
Issue date
Jun 23, 1992
Hoechst Aktiengesellschaft
Stephen Lachhein
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of aminopyrimidines
Patent number
5,070,201
Issue date
Dec 3, 1991
Hoechst AG.
Stephen Lachhein
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for separating off enol ethers from reaction mixtures conta...
Patent number
5,013,444
Issue date
May 7, 1991
Hoechst Aktiengesellschaft
Hilmar Mildenberger
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of pyrimidines
Patent number
4,960,887
Issue date
Oct 2, 1990
Hoechst Aktiengesellschaft
Stephen Lachhein
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of aminopyrimidines
Patent number
4,831,138
Issue date
May 16, 1989
Hoechst Aktiengesellschaft
Stephen Lachhein
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of pyrimidines
Patent number
4,824,949
Issue date
Apr 25, 1989
Hoechst Aktiengesellschaft
Stephen Lachhein
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 5-phenylsulfinyl-1H-2-(methoxycarbon...
Patent number
4,792,610
Issue date
Dec 20, 1988
Hoechst Aktiengesellschaft
Stephen Lachhein
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of phosphorus-containing cyanohydrin de...
Patent number
4,599,207
Issue date
Jul 8, 1986
Hoechst Aktiengesellschaft
Stephen Lachhein
C07 - ORGANIC CHEMISTRY