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Georg Elsner
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Hurth, DE
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last 30 patents
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Patent Grant
Process for making tertiary alkylphosphines
Patent number
4,757,156
Issue date
Jul 12, 1988
Hoechst Aktiengesellschaft
Norbert Weferling
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for making pulverulent ammonium polyphosphates stable to hy...
Patent number
4,639,331
Issue date
Jan 27, 1987
Hoechst Aktiengesellschaft
Georg Elsner
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for making alkali metal hypophosphite solutions
Patent number
4,450,147
Issue date
May 22, 1984
Hoechst Aktiengesellschaft
Georg Elsner
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Production of an isomeric mixture of secondary phosphines
Patent number
4,351,960
Issue date
Sep 28, 1982
Hoechst Aktiengesellschaft
Georg Elsner
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Production of tertiary phosphines
Patent number
4,324,919
Issue date
Apr 13, 1982
Hoechst Aktiengesellschaft
Georg Elsner
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Continuous production of phosphine
Patent number
4,258,022
Issue date
Mar 24, 1981
Hoechst Aktiengesellschaft
Georg Elsner
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Continuous production of organic phosphines
Patent number
4,163,760
Issue date
Aug 7, 1979
Hoechst Aktiengesellschaft
Georg Elsner
C07 - ORGANIC CHEMISTRY