Inventor · disambiguated record
Hartmut Pietsch
Also filed as: PIETSCH HARTMUET · PIETSCH HARTMUT
13 granted patents·101 citations·filing 1975–1987
91Inventor score
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13 records- 0181US4322271AProcess for the preparation of N-vinyl-N-alkyl-carboxylic acid amidesHOECHST AG·Filed 1980·Granted Mar 30, 1982·18 cites·15 claims
- 0272US3968107AProcess for the manufacture of 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one-2,2-dioxideHOECHST AG·Filed 1975·Granted Jul 6, 1976·7 cites·8 claims
- 0362US3969348AProcess for the manufacture of 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one-2,2-dioxideHOECHST AG·Filed 1975·Granted Jul 13, 1976·4 cites·6 claims
- 0461US4361541AMethod for extraction of uranium from oresVAW VER ALUMINIUM WERKE AG·Filed 1979·Granted Nov 30, 1982·10 cites·14 claims
- 0557US4438076AMethod of extracting gold and silver from an oreMETALLGESELLSCHAFT AG·Filed 1983·Granted Mar 20, 1984·18 cites·8 claims
- 0656US4436704AMethod of recovering uranium oxide from alkaline sodium uranyl carbonate solutionsMETALLGESELLSCHAFT AG·Filed 1982·Granted Mar 13, 1984·9 cites·6 claims
- 0749US4775107AMethod of processing small batteriesMETALLGESELLSCHAFT AG·Filed 1987·Granted Oct 4, 1988·13 cites·6 claims
- 0846US4052453AProcess for preparing acetoacetamide-n-sulfofluorideHOECHST AG·Filed 1975·Granted Oct 4, 1977·2 cites·7 claims
- 0943US4472359AMethod of pressure leachingMETALLGESELLSCHAFT AG·Filed 1982·Granted Sep 18, 1984·6 cites·6 claims
- 1042US3969347AProcess for the manufacture of the potassium salt of 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one-2,2-dioxideHOECHST AG·Filed 1975·Granted Jul 13, 1976·7 cites·5 claims
- 1142US3968106AProcess for the manufacture of 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one-2,2-dioxide and its use as sweetenerHOECHST AG·Filed 1975·Granted Jul 6, 1976·7 cites·7 claims
- 1233US4009161A6-Methyl-2H-1,3-oxazin-2,4(3H)dione-3-sulfohalidesHOECHST AG·Filed 1975·Granted Feb 22, 1977·0 cites·3 claims
- 1333US3993689Aβ-Acyloxy-crotonic acid amide-N-sulfohalides and a process for their preparationHOECHST AG·Filed 1975·Granted Nov 23, 1976·0 cites·9 claims
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