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Wolfgang Koppe
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Freiburg, DE
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last 30 patents
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Patent Grant
Cellulose acetate filaments with a trilobal cross section
Patent number
6,177,194
Issue date
Jan 23, 2001
Rhodia Acetow GmbH
Wolfgang Koppe
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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Patent Grant
Cellulose acetate filaments, an optically isotropic spinning soluti...
Patent number
5,449,555
Issue date
Sep 12, 1995
Rhone-Poulenc Rhodia Aktiengesellschaft
Ties Karstens
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING