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Dense polytetrafluoroethylene articles
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Patent number 5,374,473
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Issue date Dec 20, 1994
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W. L. Gore & Associates, Inc.
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John B. Knox
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Pump diaphragm
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Patent number 5,349,896
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Issue date Sep 27, 1994
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W. L. Gore & Associates, Inc.
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William E. Delaney
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Chemically resistant diaphragm
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Patent number 5,217,797
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Issue date Jun 8, 1993
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W. L. Gore & Associates, Inc.
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John B. Knox
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL