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Gunter Roscher
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Kelkheim, DE
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last 30 patents
Information
Patent Grant
Process for preparing vinyl-phosphonic acids
Patent number
5,811,575
Issue date
Sep 22, 1998
Clariant GmbH
Hans-Jerg Kleiner
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of the non-toxic salts of 6-methyl-3,4-...
Patent number
5,744,010
Issue date
Apr 28, 1998
Hoechst Aktiengesellschaft
Gunter Roscher
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing alkanephosphonic anhydrides
Patent number
5,710,330
Issue date
Jan 20, 1998
Hoechst AG
Carl Christoph Mollenkopf
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing dialkyl vinylphosphonates
Patent number
5,475,128
Issue date
Dec 12, 1995
Hoechst Aktiengesellschaft
Gunter Roscher
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method of separating vinylphosphonic acid from crude mixtures
Patent number
5,391,815
Issue date
Feb 21, 1995
Hoechst Aktiengesellschaft
Gunter Roscher
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of pure propanephosphonic anhydride
Patent number
5,319,138
Issue date
Jun 7, 1994
Hoechst Aktiengesellschaft
Gunter Roscher
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Carrier catalyst, process for its preparation, and its use for the...
Patent number
5,292,931
Issue date
Mar 8, 1994
Hoechst Aktiengesellschaft
Peter Wirtz
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Carrier catalyst, process for its preparation, and its use for the...
Patent number
5,250,487
Issue date
Oct 5, 1993
Hoechst Aktiengesellschaft
Peter Wirtz
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for making a catalyst
Patent number
5,225,388
Issue date
Jul 6, 1993
Hoechst Aktiengesellschaft
Friedrich Wunder
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the oxidation of dialkyl esters of 2-hydroxy-ethylphosp...
Patent number
5,210,259
Issue date
May 11, 1993
Hoechst Aktiengesellschaft
Ernst I. Leupold
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the isolation of vinyl acetate by distillation
Patent number
5,066,365
Issue date
Nov 19, 1991
Hoechst Aktiengesellschaft
Gunter Roscher
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of alkyl alkenylphosphinates
Patent number
4,960,919
Issue date
Oct 2, 1990
Hoechst Aktiengesellschaft
Hans-Jerg Kleiner
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of vinyl acetate
Patent number
4,902,823
Issue date
Feb 20, 1990
Hoechst Aktiengesellschaft
Friedrich Wunder
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of dialkyl vinylphosphonates
Patent number
4,894,470
Issue date
Jan 16, 1990
Hoechst Aktiengesellschaft
Gunter Roscher
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the isolation of vinyl acetate
Patent number
4,818,347
Issue date
Apr 4, 1989
Hoechst Aktiengesellschaft
Gunter Roscher
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the manufacture of unsaturated carboxylic acid esters
Patent number
4,409,396
Issue date
Oct 11, 1983
Wacker-Chemie GmbH
Dominik Dempf
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of practically formic acid-free acetic...
Patent number
4,380,663
Issue date
Apr 19, 1983
Hoechst Aktiengesellschaft
Gunter Roscher
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Carrier catalyst for the preparation of vinyl acetate from ethylene...
Patent number
4,370,261
Issue date
Jan 25, 1983
Hoechst Aktiengesellschaft
Friedrich Wunder
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of vinyl acetate from ethylene, acetic acid and oxygen...
Patent number
4,370,492
Issue date
Jan 25, 1983
Hoechst Aktiengesellschaft
Friedrich Wunder
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for separating water from mixtures thereof with vinyl aceta...
Patent number
4,353,783
Issue date
Oct 12, 1982
Hoechst Aktiengesellschaft
Gunter Roscher
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for separating water from organic multiple component mixtur...
Patent number
4,229,261
Issue date
Oct 21, 1980
Hoechst Aktiengesellschaft
Gunter Heck
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the manufacture of N,N'-diacetylethylene diamine
Patent number
4,219,500
Issue date
Aug 26, 1980
Hoechst Aktiengesellschaft
Gunter Roscher
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the separation of water from gas mixtures formed in the...
Patent number
4,156,632
Issue date
May 29, 1979
Hoechst Aktiengesellschaft
Gunter Roscher
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of carboxylic acid alkenyl esters
Patent number
4,133,962
Issue date
Jan 9, 1979
Hoechst Aktiengesellschaft
Hans Fernholz
C07 - ORGANIC CHEMISTRY