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Markus Erpenbach
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Cologne, DE
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last 30 patents
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Patent Grant
Spheroidal alkali metal polyphosphates of low apparent density, and...
Patent number
4,968,490
Issue date
Nov 6, 1990
Hoechst Aktiengesellschaft
Werner Kowalski
C01 - INORGANIC CHEMISTRY
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Patent Grant
Spheroidal alkali metal polyphosphates of low apparent density, and...
Patent number
4,721,608
Issue date
Jan 26, 1988
Hoechst AG
Werner Kowalski
C01 - INORGANIC CHEMISTRY
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Patent Grant
Spheroidal alkali metal polyphosphates of low apparent density, and...
Patent number
4,717,557
Issue date
Jan 5, 1988
Hoechst AG
Werner Kowalski
C01 - INORGANIC CHEMISTRY
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Patent Grant
Process for the dearsenification of polyphosphoric acid
Patent number
4,399,114
Issue date
Aug 16, 1983
Hoechst Aktiengesellschaft
Alexander Maurer
C01 - INORGANIC CHEMISTRY