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Filtration system
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Patent number 11,229,883
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Issue date Jan 25, 2022
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PPG Industries Ohio, Inc.
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Qunhui Guo
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Multiple element fluid separation device
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Patent number 4,476,015
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Issue date Oct 9, 1984
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V. J. Ciccone & Associates, Inc.
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Richard P. Schmitt
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Reverse osmosis system
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Patent number 4,312,755
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Issue date Jan 26, 1982
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Dow Corning Corporation
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Sun-Tak Hwang
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3795317
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Patent number 3,795,317
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Issue date Mar 5, 1974
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2923751
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Patent number 2,923,751
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Issue date Feb 2, 1960
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C07 - ORGANIC CHEMISTRY