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Wudneh Admassu
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Concord, CA, US
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Patents Grants
last 30 patents
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Patent Grant
Polycarbonate gas separation membranes containing substituted benze...
Patent number
4,959,082
Issue date
Sep 25, 1990
The Dow Chemical Company
Wudneh Admassu
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Semi-permeable hollow fiber gas separation membranes possessing a n...
Patent number
4,955,993
Issue date
Sep 11, 1990
The Dow Chemical Company
Edgar S. Sanders
C01 - INORGANIC CHEMISTRY
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Patent Grant
Process for treating a liquid-wet polycarbonate membrane to improve...
Patent number
4,900,334
Issue date
Feb 13, 1990
The Dow Chemical Company
Wudneh Admassu
F26 - DRYING
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Patent Grant
Process for drying water-wet polycarbonate membranes
Patent number
4,843,733
Issue date
Jul 4, 1989
The Dow Chemical Company
Wudneh Admassu
F26 - DRYING