Inventor · disambiguated record
Siglinde Hemmann
Also filed as: HEMMANN SIGLINDE
7 granted patents·63 citations·filing 1985–1989
81Inventor score
Files withHENKEL KGAA7
Top patents by PatentIndex Score
7 records- 0187US4624947A4-dimethylamino-1-hydroxybutane-1,1-diphosphonic acid, salts thereof, and processes thereforHENKEL KGAA·Filed 1985·Granted Nov 25, 1986·47 cites·5 claims
- 0260US4892679AOxa-alkane polyphosphonic acids, their use as thresholders, and complexing compositions containing these compoundsHENKEL KGAA·Filed 1989·Granted Jan 9, 1990·6 cites·7 claims
- 0356US4876339AProcess for synthesis of azacycloalkane-2,2-diphosponic acidsHENKEL KGAA·Filed 1989·Granted Oct 24, 1989·5 cites·20 claims
- 0447US4908138AHydroxyacetonitrile diphosphonic acid, a process for its production, and its useHENKEL KGAA·Filed 1988·Granted Mar 13, 1990·3 cites·23 claims
- 0543US4719050ADiphosponylated oxonitriles, processes and uses therefor, and compositions containing themHENKEL KGAA·Filed 1987·Granted Jan 12, 1988·2 cites·5 claims
- 0633US4962229AOlefinic diphosphonic acids, a process for their production, their use as thresholders, and complexing compositions containing themHENKEL KGAA·Filed 1989·Granted Oct 9, 1990·0 cites·10 claims
- 0733US4880575AOlefinic diphosphonic acids, a process for their production, their use as thresholders and complexing compositions containing themHENKEL KGAA·Filed 1988·Granted Nov 14, 1989·0 cites·9 claims
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