| Patents for E03B 1 - Methods or layout of installations for water supply (1,879) |
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| 04/15/1992 | CN2101692U Variable quantity constant pressure water supply apparatus with health function for high buildings |
| 03/31/1992 | US5100563 Method for introducing pure hot-spring water directly transported from a spa into a spa house bath and for maintaining the purity and freshness of the introduced water |
| 03/31/1992 | US5100540 Water saving system |
| 03/31/1992 | US5099874 Residential waste water disposal system |
| 03/03/1992 | US5092003 Water conservation device |
| 01/29/1992 | EP0468881A1 Service hookup terminal |
| 01/21/1992 | CA1294515C Supply cylinder shut-off and flow control valve |
| 01/08/1992 | CN2092562U Auxiliary pressurizing device of fluidic pump |
| 10/22/1991 | US5059330 Gray water reclamation method and apparatus |
| 10/17/1991 | WO1991015639A1 Gray water reclamation method and apparatus |
| 08/29/1991 | DE4005577A1 Bath drain-water processing unit - has surge-arresting and initial-cleaning vessel upstream of tank |
| 07/24/1991 | CN2081402U Pedal pump |
| 07/16/1991 | US5032290 Circulation |
| 06/26/1991 | CN1012975B Water-reuse in residential building and its equipment |
| 05/15/1991 | EP0427213A1 Installation for the reduction of fresh water consumption |
| 05/08/1991 | CN1051231A Pumping plant |
| 01/10/1991 | DE4007351A1 Separate water circuits for domestic buildings - for wide range of consumption and therapeutic demands |
| 12/05/1990 | CN2066909U Automatic water pump for pipe line |
| 11/22/1990 | DE3932022A1 Waste water piping for bathroom including domestic washing machine - collects used water into sump for recycling via electrically controlled pump and cock to toilet cistern |
| 10/24/1990 | EP0256113B1 Fluid-flow isolation and control apparatus |
| 09/20/1990 | DE3908249A1 Drinking-water saving device |
| 09/12/1990 | CN2061942U Floating valve and automatic water supply device |
| 09/06/1990 | DE4001635A1 Domestic waste water recycling system - consists of collection tanks and pump feeding water from baths to lavatory flush tanks |
| 09/05/1990 | CN2061576U Installation for water supply |
| 08/28/1990 | CA1273329A1 Fluid-flow isolation and control apparatus and method |
| 07/25/1990 | CN1008934B Fluid flow isolation and control apparatus and method |
| 05/15/1990 | US4924536 System of conserving water in a building |
| 05/08/1990 | US4922943 Water conservator system and method |
| 04/11/1990 | EP0363012A1 Vacuum toilet system |
| 04/10/1990 | US4914758 Fresh water control system and method |
| 02/14/1990 | CN2052785U Microsize automatic device for water supply |
| 01/03/1990 | EP0348886A1 Fresh water control system and method |
| 12/14/1989 | DE3819330A1 Rainwater-utilisation system |
| 08/17/1989 | DE3803262A1 Apparatus for collecting and reusing domestic service water which is only slightly contaminated |
| 05/09/1989 | US4828709 Recirculating shower using limited water supply |
| 03/29/1989 | EP0248799B1 Utility water distribution system |
| 03/15/1989 | CN2034252U Full-automatic cold-hot water supplying machine |
| 01/26/1989 | DE3723089A1 Service-water tapping arrangement |
| 01/04/1989 | CN2030216U Full plastic installations for water supply |
| 01/04/1989 | CN1030113A Modular automatic water supply system for high building |
| 12/08/1988 | DE3717963A1 System for returning waste water |
| 10/20/1988 | DE3712421A1 Apparatus for substituting drinking water for the purpose of toilet flushing |
| 05/19/1988 | DE3739039A1 Zweiweganschlussteil mit unabhaengigen regelventilen fuer wasserhahn Zweiweganschlussteil with independent control valves for water closet |
| 03/10/1988 | DE3722240A1 Treatment system for slightly soiled waste water for re-use in residential buildings |
| 01/13/1988 | CN87205855U Household top-water apparatus |
| 01/13/1988 | CN87204999U Small pressure water supply device |
| 12/26/1987 | CN87206668U Plastic bag pressure water supplier |
| 12/16/1987 | EP0248799A1 Utility water distribution system. |
| 11/11/1987 | CN86210474U Water supply device for fire control |
| 11/07/1987 | CN86210360U Constant-pressure pneumatic water feeding system |
| 11/04/1987 | EP0243424A1 A floor mounted pipe installation in buildings and a method of providing such an installation |
| 09/22/1987 | US4694860 Fluid-flow isolation and control apparatus and method |
| 09/02/1987 | CN87101604A Fluid-flow isolation and control apparatus and method |
| 08/20/1987 | DE3604464A1 Recycling process for making use of waste cleaning water from sanitary facilities |
| 08/13/1987 | WO1987004745A1 Fluid-flow isolation and control apparatus and method |
| 07/08/1987 | CN86200574U Domestic well pump and other utensils |
| 05/07/1987 | WO1987002730A1 A floor mounted pipe installation in buildings and a method of providing such an installation |
| 05/06/1987 | CN86207687U Pressure type constant pressure water supply device |
| 04/15/1987 | CN86204464U Pneumatic water supply device |
| 02/11/1987 | CN86102629A Water-reuse in a residential building and its equipment |
| 01/22/1987 | DE3526011A1 Device for storing liquids |
| 08/14/1986 | WO1986004628A1 Utility water distribution system |
| 06/04/1986 | EP0182887A1 Installation for the reuse of waste water originating in particular from kitchens, baths, showers and washbasins |
| 05/09/1986 | WO1986002524A1 Plastic section and its use |
| 12/31/1985 | US4562552 Method and apparatus for controlling pressure and flow in water distribution networks |
| 12/19/1985 | WO1985005649A1 Installation for the reuse of waste water originating in particular from kitchens, baths, showers and washbasins |
| 10/02/1985 | EP0156671A1 Cistern water cooling and purification device |
| 07/03/1984 | US4457326 System for providing temporary water service between a water main and one or more locations normally connected to the main |
| 04/13/1982 | US4324656 Installation for the withdrawal and purification treatment of waters and aqueous effluents |
| 04/07/1982 | EP0048906A2 Water conduit arrangement having connecting means for taps |
| 10/13/1981 | US4294311 Method of and arrangement for the seasonal storage and use of hot water produced in particular by electrical power-generating thermal and nuclear stations |
| 04/30/1980 | EP0010337A1 A plant for gathering and purifying water and waste water |
| 04/15/1980 | US4197597 Water recycling with solids and foam removal |
| 12/25/1979 | US4180083 System for controlling flow rate in pipelines |
| 07/24/1979 | US4162218 Incorporating a gray water storage tank |
| 07/03/1979 | US4159736 Method of and arrangement for the seasonal storage and use of hot water produced in particular by electrical power-generating thermal and nuclear stations |
| 09/26/1978 | US4115879 Water recirculation system |
| 09/12/1978 | US4112972 Waste water reclamation apparatus |
| 08/02/1977 | US4039005 Flow diversion means |