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Heribert Tetzlaff
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Frankfurt am Main, DE
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last 30 patents
Information
Patent Grant
Process for eliminating adsorbable organic halogen compounds from w...
Patent number
5,755,980
Issue date
May 26, 1998
Hoechst Aktiengesellschaft
Joachim Semel
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Process for the extractive removal of phospho- and sulfobetaines fr...
Patent number
5,326,906
Issue date
Jul 5, 1994
Hoechst Aktiengesellschaft
Heribert Tetzlaff
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the extractive separation of L-phosphinothricin and L-g...
Patent number
5,153,355
Issue date
Oct 6, 1992
Hoechst Aktiengesellschaft
Hilmar Mildenberger
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for extracting N-methyl-2-pyrrolidone
Patent number
5,068,358
Issue date
Nov 26, 1991
Hoechst Aktiengesellschaft
Georg-Emerich Miess
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the purification and recovery of the contaminated solut...
Patent number
5,047,377
Issue date
Sep 10, 1991
Hoechst Aktiengesellschaft
Heinz Erpenbach
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 separation of halogenated hydrocarbons from hydroch...
Patent number
4,986,974
Issue date
Jan 22, 1991
Hoechst Aktiengesellschaft
Wilhelm Lendle
C01 - INORGANIC CHEMISTRY