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Stacy Wollner
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Kewaskum, WI, US
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last 30 patents
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Patent Grant
Dual porosity PTFE tubes
Patent number
5,935,667
Issue date
Aug 10, 1999
IMPRA, Inc.
Robert Calcote
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method of forming dual porosity PTFE tubes by extrusion of concentr...
Patent number
5,641,443
Issue date
Jun 24, 1997
IMPRA, Inc.
Robert Calcote
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method of forming dual porosity FTFE tubes by extrusion of concentr...
Patent number
5,453,235
Issue date
Sep 26, 1995
IMPRA, Inc.
Robert W. Calcote
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL