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Gustav Duweg
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Wuppertal, DE
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last 30 patents
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Patent Grant
Process for manufacturing cellulose acetate membranes
Patent number
5,505,890
Issue date
Apr 9, 1996
Akzo nv
Gustav Duweg
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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Patent Grant
Method for coating cellulosic membranes
Patent number
5,360,636
Issue date
Nov 1, 1994
Akzo nv
Michael Diamantoglou
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL