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Class Information
Number: 210/169
Name: Liquid purification or separation > Structural installation > Closed circulating systems > Aquarium or swimming pool
Description: Systems designed to accommodate living animals.

Patents under this class:

Patent Number Title Of Patent Date Issued
6527949 Landscaping pond system Mar. 4, 2003
6524487 Methods and compositions using lanthanum for removing phosphate from water Feb. 25, 2003
6517320 Hose siphon Feb. 11, 2003
6517713 Apparatus for combined ozonation and electrolytic chlorination water purification system Feb. 11, 2003
6517727 Method of operating a chemical feeder Feb. 11, 2003
6511605 Device for automatically feeding soluble fluid treating agents in tablet form into a fluid body Jan. 28, 2003
6503391 System of pipework for a device for filtering and pumping the water of a swimming pool basing Jan. 7, 2003
6500332 Apparatus for purifying spas/jetted tubs Dec. 31, 2002
6497814 Apparatus for cleaning a swimming pool water filter Dec. 24, 2002
6497822 Chemical feeder Dec. 24, 2002
6495034 Swimming pool valve system Dec. 17, 2002
6491826 Systems and methods for separation of organics from fluids Dec. 10, 2002
6485638 Electric powered automatic swimming pool cleaning system Nov. 26, 2002
6473927 Swimming bath cleaning device Nov. 5, 2002
6473928 Magnetic control valve for a suction powered pool cleaner Nov. 5, 2002
6471856 Pre-filter for a hot tub skimmer basket Oct. 29, 2002
6458270 Swimming pool skimmer duct joint Oct. 1, 2002
6453483 Spa weir system Sep. 24, 2002
6451209 Method and a system for the treatment of water Sep. 17, 2002
6447675 Fish pond filter system Sep. 10, 2002
6447681 Aquaculture wastewater treatment system and method of making same Sep. 10, 2002
6443100 Debris separating system for fish pens Sep. 3, 2002
6444120 Electric aquarium cleaning apparatus Sep. 3, 2002
6440300 Water treatment system for swimming pool water Aug. 27, 2002
6440313 Water purification plant Aug. 27, 2002
6440315 Process and apparatus for filtering, and for reducing algae formation or killing algae in fish tanks, and the like Aug. 27, 2002
6436295 Protein skimmer Aug. 20, 2002
6432312 Closed system for rearing aquatic life Aug. 13, 2002
6432371 Child proof chlorine dispenser with a three dimensional ornament Aug. 13, 2002
6425999 Warm/cold double-circulation water filter system and swimming pool arrangement Jul. 30, 2002
6423217 Pool cleaner having vortex drive tube Jul. 23, 2002
6419839 Pool and spa filter media Jul. 16, 2002
6419840 Cleaning system for swimming pools and the like Jul. 16, 2002
6409916 Filter element for pool-cleaning device Jun. 25, 2002
6409917 Accessory for use in a water treatment system of a swimming pool Jun. 25, 2002
6398952 Stationary pool leaf net filter Jun. 4, 2002
6395167 Whirlpool bath filter and suction device May. 28, 2002
6387250 Water suction powered automatic swimming pool cleaning system May. 14, 2002
6387252 Compact filtration unit for swimming pool basin May. 14, 2002
6383374 Pool skimmer system May. 7, 2002
6379542 Pool cleaner with righting weight assembly Apr. 30, 2002
6372126 Chlorinator for aerobic waste treatment systems Apr. 16, 2002
6372148 Apparatus for purifying spas/jetted tubs Apr. 16, 2002
6365039 Positive pressure automatic swimming pool cleaning system Apr. 2, 2002
6365044 Buoyant media filter with diffuser Apr. 2, 2002
6358410 Pool skimmer with buoyant member Mar. 19, 2002
6358425 Pool cleaning and sanitizing apparatus Mar. 19, 2002
6355180 Swimming pool covering, heating, and cleaning system Mar. 12, 2002
6340431 SPA chemistry monitor and treatment unit Jan. 22, 2002
6338800 Methods and compositions using lanthanum for removing phosphates from water Jan. 15, 2002

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