Inventor · disambiguated record
Helmut Meidert
Also filed as: MEIDERT HELMUT
5 granted patents·15 citations·filing 1971–1983
71Inventor score
Files withHOECHST AG5
Top patents by PatentIndex Score
5 records- 0176US4041049AProcess for the manufacture of cyclohexane-1,3-diones and 6-alkyl-3,4-dihydro-2-pyranonesHOECHST AG·Filed 1975·Granted Aug 9, 1977·12 cites·3 claims
- 0251US4226997A8-Chloro-5,6,7,8-tetrahydro-2-quinolone and 8-bromo-5,6,7,8-tetrahydro-2-quinolone, the hydrochloride or hydrobromide thereof and process for their manufactureHOECHST AG·Filed 1979·Granted Oct 7, 1980·2 cites·12 claims
- 0335US4487971AProcess for the isolation of crystalline 1,3-cylohexanedioneHOECHST AG·Filed 1983·Granted Dec 11, 1984·1 cites·20 claims
- 0432US4277606A8-Oxo-5,6,7,8-tetrahydro-2-quinolone and process for the preparation thereofHOECHST AG·Filed 1980·Granted Jul 7, 1981·0 cites·6 claims
- 0525US3931309AProcess for the preparation of carbon tetrachloride and phosgeneHOECHST AG·Filed 1971·Granted Jan 6, 1976·0 cites·10 claims
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