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Dissolved air flotation clarifier
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Patent number 8,518,266
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Issue date Aug 27, 2013
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RG Delaware, Inc.
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R. Lee Roberts
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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Underdrain system
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Patent number 8,409,437
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Issue date Apr 2, 2013
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RG Delaware, Inc.
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R. Lee Roberts
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Underdrain system
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Patent number 8,052,871
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Issue date Nov 8, 2011
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RG Delaware, Inc.
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R. Lee Roberts
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Underdrain system
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Patent number 8,052,870
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Issue date Nov 8, 2011
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RG Delaware, Inc.
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R. Lee Roberts
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Underdrain system
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Patent number 7,820,043
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Issue date Oct 26, 2010
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RG Delaware Inc.
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R. Lee Roberts
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Filter system
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Patent number 7,771,597
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Issue date Aug 10, 2010
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RG Delaware, Inc.
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Mark Kevin Addison
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Underdrain
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Patent number D565148
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Issue date Mar 25, 2008
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RG Delaware, Inc.
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Mark Kevin Addison
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D23 - Environmental heating and cooling
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Underdrain system
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Patent number 7,288,194
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Issue date Oct 30, 2007
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RG Deleware, Inc.
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R. Lee Roberts
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Underdrain
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Patent number D519601
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Issue date Apr 25, 2006
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RG Delaware, Inc.
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Mark Kevin Addison
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D23 - Environmental heating and cooling
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Underdrain system
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Patent number 6,991,723
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Issue date Jan 31, 2006
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RG Delaware, Inc.
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R. Lee Roberts
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Underdrain system
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Patent number 6,982,034
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Issue date Jan 3, 2006
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RG Delaware, Inc.
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R. Lee Roberts
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Low profile extruded underdrain
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Patent number 6,740,237
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Issue date May 25, 2004
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RG Delaware, Inc.
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R. Lee Roberts
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Modular filter system
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Patent number 6,616,852
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Issue date Sep 9, 2003
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RG Delaware, Inc.
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R. Lee Roberts
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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