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Self-cleaning water filtration system
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Patent number 9,022,223
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Issue date May 5, 2015
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Instapure Brands, Inc.
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William Scott Wright
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Pressurized water filtration system
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Patent number 8,323,490
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Issue date Dec 4, 2012
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Instapure Brands, Inc.
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William Scott Wright
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Agitator suction filter
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Patent number 5,269,923
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Issue date Dec 14, 1993
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Schenk Filterbau GmbH
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Wolfgang Diemer
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Nutsche process filter drive unit
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Patent number 5,139,667
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Issue date Aug 18, 1992
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Sparkler Filters, Inc.
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James T. Reneau
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Filtering device with agitator
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Patent number 4,992,171
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Issue date Feb 12, 1991
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Bayer Aktiengesellschaft
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Hartmut Hetzel
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Process filter
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Patent number 4,888,111
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Issue date Dec 19, 1989
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Schenk Filterbau GmbH
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Wolfgang Diemer
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Suction filter
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Patent number 4,828,697
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Issue date May 9, 1989
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Schenk Filterbau GmbH
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Rainer Kuhnt
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Sampling device
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Patent number 4,699,013
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Issue date Oct 13, 1987
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Gesellshaft fur Bio technologische Forshung mbH
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Karl H. Kroner
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Filtration apparatus
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Patent number 4,417,980
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Issue date Nov 29, 1983
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Schenk Filterbau GmbH
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Rolf Baur
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Filter devices and methods
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Patent number 4,399,042
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Issue date Aug 16, 1983
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The DeHydro Corporation
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Forrest B. Stannard
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Filtering and drying apparatus
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Patent number 4,376,705
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Issue date Mar 15, 1983
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Nippon Dyeing Machine Manufacturing Co. Ltd.
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Kisaburo Komura
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Filtering apparatus
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Patent number 4,081,381
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Issue date Mar 28, 1978
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Rosenmund AG
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Peter Rosenmund
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2909286
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Patent number 2,909,286
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Issue date Oct 20, 1959
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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2404215
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Patent number 2,404,215
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Issue date Jul 16, 1946
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL