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Membrane separation module
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Patent number 5,207,906
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Issue date May 4, 1993
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Permea, Inc.
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Steven R. Auvil
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Cross-flow permeator
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Patent number 5,043,067
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Issue date Aug 27, 1991
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Air Products and Chemicals, Inc.
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James C. Sorensen
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Membrane processed purified pipeline gas
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Patent number 5,006,132
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Issue date Apr 9, 1991
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Air Products and Chemicals, Inc.
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Stephen P. DiMartino
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Method for gas separation
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Patent number 4,761,164
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Issue date Aug 2, 1988
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Air Products and Chemicals, Inc.
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Guido P. Pez
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL