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Andrea Hunsche
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Frechen, DE
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last 30 patents
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Precipitated silicas, a process for their preparation and their use...
Patent number
5,859,117
Issue date
Jan 12, 1999
Degussa Aktiengsellschaft
Udo Goerl
C01 - INORGANIC CHEMISTRY
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Patent Grant
Precipitated silicas, a process for their preparation and their use...
Patent number
5,705,137
Issue date
Jan 6, 1998
Degussa Aktiengesellschaft
Udo Goerl
C01 - INORGANIC CHEMISTRY