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Class Information
Number: 210/747
Name: Liquid purification or separation > Processes > Including geographic feature (e.g., drainage ditch, septic, pond)
Description: Process in which a relationship to or a feature of the terrain is positively recited, other than mere discharge to the earth or to a body of water.

Patents under this class:

Patent Number Title Of Patent Date Issued
7906028 Hydraulic cements comprising carbonate compound compositions Mar. 15, 2011
7906003 Subsea production system Mar. 15, 2011
7901583 Treatment of aqueous suspensions Mar. 8, 2011
7892438 Method and apparatus for collecting and/or removing sludge Feb. 22, 2011
7892437 Method of water management in the aggregate industry Feb. 22, 2011
7887762 Pulsed ozone sparging for injecting a high volume high-concentration of ozone Feb. 15, 2011
7883626 Method for the treatment of acid mine drainage Feb. 8, 2011
7875190 Combination physical separator and filter device to remove contaminants from stormwater runoff Jan. 25, 2011
7875123 Method and apparatus for cleaning percolation basins Jan. 25, 2011
7857077 Method and apparatus for processing and injecting drill cuttings Dec. 28, 2010
7850857 Collector with adjustable input/discharge to control sediment removal Dec. 14, 2010
7833417 Method for improving hydrocarbon-water compatibility in a subsurface hydrocarbon-contaminated site Nov. 16, 2010
7824555 System and method for water restoration Nov. 2, 2010
7820055 Process to maintain large clean recreational water bodies Oct. 26, 2010
7820054 Method for dewatering slurry from construction sites Oct. 26, 2010
7811458 Method for treating aqueous sludge, material so produced and the use thereof Oct. 12, 2010
7807059 Method and apparatus for collecting pollutants in a body of water Oct. 5, 2010
7805890 Rain and storm water filtration systems Oct. 5, 2010
7802623 Method and a device for destruction of organic material in injection water Sep. 28, 2010
7799235 Fluid filter system and related method Sep. 21, 2010
7798419 Method of and a device for the reduction of tropical cyclones destructive force Sep. 21, 2010
7798218 Apparatus and a method of fragmenting hard particles Sep. 21, 2010
7790035 Tertiary system and process for treating a liquid effluent from an onsite domestic secondary treatment unit Sep. 7, 2010
7790033 Surface water treatment using flocculation and associated methods Sep. 7, 2010
7780855 Method for pre-engineering a system for environmental control of storm water Aug. 24, 2010
7776223 Method of collecting high-level radioactive uranium powder underwater Aug. 17, 2010
7776222 Dockside water intake system for marine vessels Aug. 17, 2010
7767097 Ozonated capacitive deionization process & product water Aug. 3, 2010
7767094 Method and apparatus for collecting and/or separating solids from liquids Aug. 3, 2010
7731855 Septic tanks Jun. 8, 2010
7722244 Process for operating a water recovery plant May. 25, 2010
7699982 Apparatus, system and method for remediation of contamination Apr. 20, 2010
7695620 Tertiary filter septic system and method Apr. 13, 2010
7691272 Method of effecting efficient flow equalization Apr. 6, 2010
7686961 Apparatus for removing dissolved and suspended contaminants from waste water Mar. 30, 2010
7686541 Method of containing a spill Mar. 30, 2010
7682512 Multi-level filter device Mar. 23, 2010
7666313 Groundwater and subsurface remediation Feb. 23, 2010
7662290 Integrated water decontamination plant and well pump arrangement Feb. 16, 2010
7658857 Treating runoff Feb. 9, 2010
7658856 Environmentally-neutral processing with condensed phase cryogenic fluids Feb. 9, 2010
7648640 Directional microporous diffuser and directional sparging Jan. 19, 2010
7645390 Stormwater pretreatment and disposal system and method Jan. 12, 2010
7638066 Flow control structure and related media filtration system Dec. 29, 2009
7638065 Stormwater treatment apparatus and method Dec. 29, 2009
7638064 Method and system for disinfecting irrigation water in agricultural irrigation systems Dec. 29, 2009
7635431 Septic drain line flow control system Dec. 22, 2009
7632408 Passive drain field system for wastewater treatment and associated methods Dec. 15, 2009
7631615 Oxygenation system for fish farming installations Dec. 15, 2009
7621696 Directional microporous diffuser and directional sparging Nov. 24, 2009

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