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Underdrain filter block
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Patent number 10,052,572
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Issue date Aug 21, 2018
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Xylem Water Solutions Zelienople LLC
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Dean T. Berkebile
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Underdrain flume plate
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Patent number 9,199,186
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Issue date Dec 1, 2015
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Xylem Water Solutions Zelienople LLC
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Daniel E. Bruce
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Filter media retainer assembly
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Patent number 9,138,665
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Issue date Sep 22, 2015
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Xylem Water Solutions Zelienople LLC
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Christopher J. Ball
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Filter media retainer assembly
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Patent number 8,871,093
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Issue date Oct 28, 2014
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Xylem Water Solutions Zelienople LLC
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Christopher J. Ball
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Clog resistant media retainer assembly
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Patent number 8,657,122
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Issue date Feb 25, 2014
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Xylem Water Solutions Zelienople LLC
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John L. Geibel
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Filter media retainer
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Patent number D687861
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Issue date Aug 13, 2013
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Xylem Water Solutions Zelienople LLC
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Christopher J. Ball
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D15 - Machines not elsewhere specified
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