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Yurdagul F. Ozcayir
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Nashua, NH, US
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last 30 patents
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Patent Grant
Sulfonated polyimide gas separation membranes
Patent number
5,964,925
Issue date
Oct 12, 1999
Praxair Technology, Inc.
Yurdagul F. Ozcayir
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Sulfonated polyimide gas separation membranes
Patent number
5,725,633
Issue date
Mar 10, 1998
Praxair Technology, Inc.
Yurdagul F. Ozcayir
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Sulfonated polyimide gas separation membranes
Patent number
5,618,334
Issue date
Apr 8, 1997
Praxair Technology, Inc.
Yurdagul F. Ozcayir
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Modified poly(phenylene oxide) based membranes for enhanced fluid s...
Patent number
5,348,569
Issue date
Sep 20, 1994
Praxair Technology, Inc.
Benjamin Bikson
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Semipermeable membranes based on certain sulfonated substituted pol...
Patent number
5,071,448
Issue date
Dec 10, 1991
Union Carbide Industrial Gases Technology Corporation
Benjamin Bikson
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Sulfonated hexafluoro bis-a polysulfone membranes and process for f...
Patent number
4,971,695
Issue date
Nov 20, 1990
Union Carbide Industrial Gases Technology Corporation
James H. Kawakami
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...