| Patents for E03B 3 - Methods or installations for obtaining or collecting drinking water or tap water (5,213) |
|---|
| 05/09/1997 | WO1997016682A1 Conditioner with accompanying output of water by condensation of atmospheric moisture |
| 05/07/1997 | EP0752086A4 Potable water collection cleaning apparatus |
| 05/07/1997 | EP0701644A4 Potable rainwater collecting apparatus |
| 04/16/1997 | EP0767604A1 Method and system for irrigation of areas affected by aridity |
| 03/18/1997 | US5611677 River pump device |
| 03/13/1997 | DE19543524C1 Underground rainwater-tank |
| 03/06/1997 | DE19509467A1 Waste water processing plant |
| 03/04/1997 | US5606990 Potable rainwater collecting apparatus |
| 03/04/1997 | CA2137942C Tank interceptor |
| 02/20/1997 | DE19530060A1 Water extraction system for narrow boreholes with diameter from 22 mm and depths greater than 10 m |
| 02/19/1997 | CN1143140A Household multi purpose water saving bucket for secondary use of water |
| 02/12/1997 | CN1034025C Weeping well with natural filter bed |
| 01/28/1997 | US5597045 Process and tool for laying underground collector mains for liquids and gases |
| 01/23/1997 | DE19541240C1 Water tank to collect and store process water from rain water |
| 01/15/1997 | EP0753631A2 Rainwater collecting and cleaning device |
| 01/15/1997 | EP0753630A1 Rain water collector |
| 01/15/1997 | CN2245079Y Civil high storey turnover window |
| 01/08/1997 | EP0752086A1 Potable water collection cleaning apparatus |
| 01/08/1997 | CN1139724A Method of using high-effect heavy calibre well to develop shallow layer ground water |
| 12/27/1996 | WO1996041671A1 Foamed glass filter |
| 12/25/1996 | CN2243486Y Steel bar reinforced concrete filtering pipe |
| 12/19/1996 | DE19509466A1 Liq. storage tank with closable inlet and outlet |
| 12/18/1996 | EP0691878B1 Filter |
| 12/12/1996 | DE19520367A1 Filter Filter |
| 12/11/1996 | CN2242270Y Domestic automatic water storage device |
| 12/03/1996 | US5579845 Method for improved water well production |
| 11/21/1996 | DE19619619A1 Escape ramp for frogs, toads or newts |
| 11/14/1996 | DE19618516A1 Collector and utiliser for rainwater |
| 11/06/1996 | CN2239448Y Silt clearing appts. |
| 10/31/1996 | DE19501511C1 Cistern with automatic fresh water top-up system |
| 10/23/1996 | CN2238222Y Water vat with purifier |
| 10/23/1996 | CN2238221Y Purified water tank |
| 10/01/1996 | CA2099747C Alternate intake pipe system to eliminate zebra mussel colonization |
| 09/11/1996 | CN1130706A Water self-supplying water tank for use in case of stopping water |
| 09/10/1996 | US5553459 Water recovery device for reclaiming and refiltering atmospheric water |
| 08/22/1996 | DE19504833A1 Air de-humidifying system with water recovery for desert region |
| 08/15/1996 | WO1996024746A1 Method for improved water well production |
| 08/08/1996 | WO1996023956A1 Method for controlling iron bacteria and improving the hydrodynamics of water wells, and devices therefor |
| 08/07/1996 | EP0725188A1 Flow dividing tube for flowing rain water |
| 08/07/1996 | CN2232457Y Self-controlled water-saving tank for household |
| 07/24/1996 | EP0722524A1 Tank system |
| 07/24/1996 | EP0722354A1 Water extraction process and device |
| 07/21/1996 | CA2140721A1 Frost proof water system |
| 07/17/1996 | CN2231277Y Household water pumping equipment for micro tube well |
| 07/09/1996 | US5533303 Downspout water conservation diversion adaptor |
| 06/13/1996 | DE4443473A1 Device for extracting water from ambient air |
| 06/11/1996 | US5524393 Method and device for delaying the run-off of flash-storm water or ordinary rainwater from roofs and other surfaces with water-retention capability |
| 06/05/1996 | CN2228498Y Sink type water storage tank |
| 05/28/1996 | US5520821 Chlorination |
| 05/23/1996 | WO1996014915A1 Water filtration apparatus |
| 05/22/1996 | CN2227681Y Filtering tube made of rcinforced concrete |
| 05/22/1996 | CN2227680Y Domestic water tank |
| 05/21/1996 | US5517829 Portable water supply system |
| 05/15/1996 | EP0711879A1 Tank interceptor |
| 05/09/1996 | DE4430901C1 Drinking water extn. from desert air |
| 05/01/1996 | CN1031691C Canal-permeating type under water purifier for water |
| 04/25/1996 | WO1996012070A1 Water conservation method and apparatus therefor |
| 04/25/1996 | WO1996003347A3 Water recovery device for reclaiming and refiltering atmospheric water |
| 04/25/1996 | DE19537689A1 Method and equipment used for cleaning spring wells |
| 04/25/1996 | CA2202930A1 Water conservation method and apparatus therefor |
| 04/23/1996 | US5509437 Dry hydrant check valve |
| 04/10/1996 | CN1120317A Filter |
| 04/10/1996 | CN1120107A Method of excavating submerged sand well in river |
| 04/02/1996 | US5503363 Variable orifice valve |
| 03/28/1996 | WO1996009443A1 A method and a device for recovering water from a humid atmosphere |
| 03/28/1996 | DE4433517A1 Underground water storage system constructing method |
| 03/27/1996 | CN2223310Y Steel-plastic composite filtering plate |
| 03/20/1996 | EP0701644A1 Potable rainwater collecting apparatus |
| 03/12/1996 | US5498331 Tank interceptor |
| 03/07/1996 | DE19528393A1 Rain water accumulator with top-open collecting chamber |
| 02/29/1996 | DE4430516A1 Filtration of rainwater using simple construction with a virtually self-cleaning filter |
| 02/22/1996 | WO1996005379A1 Tank system |
| 02/22/1996 | DE19529755A1 Drinking water tank floats within main rainwater cistern linked by close sub surface pipe |
| 02/21/1996 | EP0506684B1 Cleaning halogenated contaminants from groundwater |
| 02/13/1996 | US5490538 Automatic rain water collection device on downpipe |
| 02/08/1996 | WO1996003553A1 Flow dividing tube for flowing rain water |
| 02/08/1996 | WO1996003347A2 Water recovery device for reclaiming and refiltering atmospheric water |
| 02/08/1996 | DE19515366A1 Rain water utilisation plant with rain water container and water pump |
| 01/31/1996 | CN2218770Y Solar energy air water-making device |
| 01/24/1996 | CN2218202Y High level water supplier of press water-well |
| 01/18/1996 | DE19524474A1 Rain water collection tank capable of withstanding high pressure |
| 01/17/1996 | EP0691878A1 Filter |
| 01/09/1996 | US5482620 Permeable ditch underwater water purification apparatus |
| 01/04/1996 | DE19527533A1 System for producing water from air |
| 12/21/1995 | DE4439093A1 Rainwater etc. cascade tube with swivel flaps |
| 12/21/1995 | DE19519497A1 Device to collect and clean rainwater and runoff to butt or tank of building |
| 12/14/1995 | DE19516438A1 Device and process for producing horizontal filtered wells |
| 11/22/1995 | EP0682968A1 Filtering device |
| 11/22/1995 | CN1112178A Permeation type underground water reservoir |
| 11/21/1995 | US5468097 Method of circulating ground water in ground regions with a fall of ground water level |
| 11/16/1995 | DE4428757A1 Operating rainwater recycling plant |
| 11/15/1995 | EP0682153A1 Method and device to purify water in the supply conduit to the rainwater storage tank |
| 10/19/1995 | WO1995027876A1 Potable water collection cleaning apparatus |
| 10/19/1995 | CA2187631A1 Potable water collection cleaning apparatus |
| 10/11/1995 | CN2209694Y Water supply support with quantity-adjustable valve |
| 10/11/1995 | CN1110061A Equipment for storing water for miscellaneous use |
| 10/04/1995 | CN1109548A Well screen having a uniform outer diameter |
| 09/28/1995 | WO1995025425A1 Method and system for irrigation of areas affected by aridity |
| 09/27/1995 | CN2208569Y Fully-closed health care water bucket |
| 09/21/1995 | DE4409404A1 Rainwater collector for flat roofs |