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Kenneth Earl Stevens
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Kingston, CA
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Patents Grants
last 30 patents
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Patent Grant
Heat exchangers containing liquid crystalline polymer layers
Patent number
6,753,055
Issue date
Jun 22, 2004
DuPont Canada, Inc.
Kenneth Earl Stevens
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Heat exchanger with tube plates
Patent number
6,364,008
Issue date
Apr 2, 2002
E. I. Du Pont de Nemours and Company
Alberto Mannoni
F28 - HEAT EXCHANGE IN GENERAL
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Patent Grant
Process for making a heterogeneous membrane film
Patent number
4,909,971
Issue date
Mar 20, 1990
Du Pont Canada Inc.
Michael C. Coughlin
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Heterogeneous membranes from highly filled thermoplastic orientable...
Patent number
4,842,741
Issue date
Jun 27, 1989
Du Pont Canada Inc.
Michael C. Coughlin
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
Heat exchangers containing liquid crystalline polymer layers
Publication number
20030091772
Publication date
May 15, 2003
Kenneth Earl Stevens
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Application
Method of manufacture for fluid handling polymeric barrier tube
Publication number
20030070751
Publication date
Apr 17, 2003
Kevin Bergevin
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Barrier tubing
Publication number
20030070720
Publication date
Apr 17, 2003
Kevin Bergevin
B32 - LAYERED PRODUCTS