| Patents for E03F 1 - Methods, systems, or installations for draining-off sewage or storm water (3,565) |
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| 10/14/2004 | DE10131948B4 Versickerungsanlage für Regenwasser Seepage system for rainwater |
| 10/12/2004 | US6802343 Vehicle sewer line assembly and method of using same |
| 10/07/2004 | US20040195177 Method for subsurface aerated treatment of wastewater |
| 10/07/2004 | DE202004012735U1 Paving slab with drainage profiles has a rectangular outline with stepped profile butting edges and with grooved surface drains and slotted apertures |
| 10/06/2004 | EP1397566B1 Vacuum sewer system |
| 10/05/2004 | US6799591 Wash fluid containment system |
| 09/28/2004 | US6797162 Catch basin filter for stormwater runoff |
| 09/23/2004 | US20040184884 Storm water chamber for ganging together multiple chambers |
| 09/23/2004 | US20040182790 Methods of making dual-action decontamination media |
| 09/23/2004 | DE10231591B4 Verschlussstopfen für die Öffnungen an den Deckeln für Kanalschächte und modifizierter Verschlussdeckel für Kanalschächte Sealing plugs for the holes on the covers for manholes and modified Cap for manholes |
| 09/22/2004 | EP1169270A4 Method and apparatus for treating leach fields |
| 09/22/2004 | EP1149208B1 Air admittance valve for sanitary waste pipe system |
| 09/21/2004 | US6793811 Runoff drain filter with separately removable cartridges |
| 09/09/2004 | US20040173698 Pressure differential material transport and disposal system |
| 09/09/2004 | US20040173522 Prefilter for water treatment |
| 09/09/2004 | US20040173513 Apparatus and method for blocking and controlling the release of solid materials into or through a fluid-flow channel |
| 09/09/2004 | DE202004009324U1 Infiltration trough for seepage of rainwater, comprises a U-shaped distributor channel which runs along the length of infiltration trough |
| 09/09/2004 | DE10307783A1 Filter unit for shafts and drain systems comprises a filter flap which is located between the top coarse filter and the bottom outlet, incorporates a filter insert and a droplet catcher, and is pivotable about an axis |
| 09/08/2004 | CN1526890A Drainage treating apparatus |
| 09/02/2004 | DE19614610B4 Unterdruckentwässerung Negative pressure drainage |
| 09/01/2004 | EP1452653A1 Leaching system |
| 08/26/2004 | US20040164026 antimicrobial compound (nonself-condensing organosilane) grafted onto hydrophobic polymer particles reduce proliferation of microbial organisms as well as sorb chemical contaminants from, e.g., runoff water |
| 08/25/2004 | CN1163655C Ventilation device for rise straight-tube of vacuum water drainage system |
| 08/24/2004 | US6780310 Variable vortex baffle fluid filter |
| 08/24/2004 | US6779946 Drainage structures |
| 08/18/2004 | EP1446536A1 Pollutant containment system |
| 08/18/2004 | EP1402123A4 Toilet system |
| 08/18/2004 | EP0861357B1 Drain system in a building |
| 08/12/2004 | WO2004068060A1 A method of preventing uncontrolled dispersal of degraded metallic products from a bullet back stop at a shooting-range and a bullet back stop for performing the method |
| 08/12/2004 | DE202004007793U1 Closure for the side inflow into a drain shaft, to prevent the escape of odors, has a filter material held by a carrier between the perforated wall of the base body and the inserted trap body |
| 08/11/2004 | CN1161523C Vacuum drainage system |
| 08/11/2004 | CN1161522C Air admittance valve for sanitary waste pipe system |
| 08/10/2004 | US6772789 Flow leveling device |
| 08/05/2004 | WO2004065705A1 System and method for distributing liquid flow into predetermined proportions |
| 08/05/2004 | WO2004065704A1 Toilet |
| 08/05/2004 | WO2004007373A3 Septic tank drain field pipe manifold system and method of use |
| 08/05/2004 | US20040151546 Water flow responsive barrier for gutters and storm drains with rotary actuator |
| 08/05/2004 | US20040148690 Toliet system |
| 08/05/2004 | CA2513361A1 System and method for distributing liquid flow into predetermined proportions |
| 08/04/2004 | CN1518625A Vacuum sewer system |
| 07/29/2004 | DE10037454B4 Neuartige Bauweise von Stauzisternen in Bergregionen Novel construction of storage tanks in mountainous regions |
| 07/28/2004 | EP0830483B1 Vacuum tank construction for a vacuum toilet assembly |
| 07/28/2004 | CN1516773A Toilet system |
| 07/22/2004 | WO2003051481A3 High capacity catch basin filtration system with adjustable deflector ring |
| 07/22/2004 | DE10361439A1 Vacuum sewer system, includes sewage collection vessel with area of increased cross section |
| 07/15/2004 | US20040134542 System and method for distributing liquid flow into predetermined proportions |
| 07/14/2004 | EP1437305A2 Three-dimensional, box-like liquid reservoir |
| 07/14/2004 | EP1436470A1 Dual-action decontamination system |
| 07/14/2004 | CN1157518C Vacuum system |
| 07/08/2004 | WO2003046295A3 Expandable leaching field system |
| 07/08/2004 | DE10257522A1 Underground civil engineering process for drawing off settled water, has a chamber with a top access and an inflow as well as a connection with the surrounding ground |
| 06/24/2004 | US20040120828 Pump system with vacuum source |
| 06/17/2004 | US20040112811 Protector for sewer system inlet |
| 06/17/2004 | US20040112448 Vehicle sewer line assembly and method of using same |
| 06/17/2004 | US20040111794 Buoyancy flushing apparatus and method thereof |
| 06/17/2004 | DE20301649U1 A vacuum toilet system has an intermediate temporary storage tank and valve system so that the toilet bowl is never directly connected to the vacuum unit |
| 06/16/2004 | EP1428940A2 Device for seeping or restraining of rain water |
| 06/15/2004 | US6749746 Catch basin trap with filter |
| 06/15/2004 | US6749367 Orifice shield for a drainage conduit in a wastewater treatment drain field |
| 06/15/2004 | US6749366 Environmental filter and flow control device |
| 06/15/2004 | US6748698 Water flow control system |
| 06/09/2004 | CN1152992C Rain water storing/infiltration structure |
| 06/08/2004 | US6746612 Collecting water from residential water source; channeling water through pipes via gravity to a storage tank; filtering; treating water with a sanitizing agent; delivering water from storage tank to soil and subsoil of surrounding landscape |
| 06/02/2004 | CN1500944A Rainwater storaging filter in the earth |
| 06/01/2004 | US6743354 Drain guard catch basin |
| 05/27/2004 | US20040101369 Storm water reservoir with low drag |
| 05/27/2004 | US20040099414 Water resource recycling system |
| 05/27/2004 | DE10250233A1 Shutoff device for sewer pipes to prevent entry of rainwater during floods consists of hatch cover with metal lid with rubber band seal and locking bolts for hermetic seal |
| 05/20/2004 | US20040094461 Storm drain filter assembly |
| 05/19/2004 | EP1226315A4 Modular drainage channels |
| 05/19/2004 | DE10251422A1 Excess rainwater collection tanks for private housing consists of stainless steel tank in basement, with throttle device for regulated drainage into public sewage system |
| 05/19/2004 | DE10212506B4 Ventil, insbesondere Spülventil Valve, in particular flush valve |
| 05/13/2004 | DE202004002398U1 Drain or sink shaft houses a filter consisting of a textile or fleece material containing one or more different reduction agents with specified normal potentials |
| 05/12/2004 | EP1071855B1 Toilet apparatus |
| 05/11/2004 | US6733665 Storm drain system for preventing and filtering debris, trash and hydrocarbons with removable inserts |
| 05/11/2004 | US6732386 Rinse fluid valve for a vacuum toilet |
| 05/06/2004 | WO2004038343A1 Determining a flow in a wastewater system |
| 05/06/2004 | WO2003025346A9 Drain sealing device |
| 05/06/2004 | EP1416099A2 A ground water drainage system |
| 05/06/2004 | DE4112888B4 Vakuum-Toilettensystem Vacuum toilet system |
| 04/28/2004 | CN1492113A System for city water saving and classified supply and draining, city fecal treatment and organic fertilizer reutilization |
| 04/27/2004 | US6726402 Roadway surface grating with trash detention during drier conditions |
| 04/27/2004 | US6726401 Controlling the flow of air through the influence zone; sewer line, septic tank |
| 04/22/2004 | US20040076473 Methods and modules for an underground assembly for storm water retention or detention |
| 04/22/2004 | DE20219139U1 Versickerungs- und Rückhalteanlage für Regenwasser Infiltration and retention system for rainwater |
| 04/21/2004 | EP1409142A1 Pressure differential material transport and disposal system |
| 04/15/2004 | US20040069697 Curbside drain barrier for detaining solid trash during no or slow water flow |
| 04/14/2004 | CN2611350Y Special appts. for filtering and discharging waste bath water, and appts. for reclaiming afterheat from waste bath water |
| 04/13/2004 | US6719490 Stormwater receiving assembly |
| 04/13/2004 | US6719489 Selective suspension drain closure apparatus and method of controlling flow of liquid |
| 04/08/2004 | WO2004029376A1 A gully trap filter |
| 04/08/2004 | US20040067102 Roadway surface grating with trash detention during drier conditions |
| 04/08/2004 | US20040065601 Curbside trap for pollutants and solid trash |
| 04/08/2004 | US20040065364 Elongated tubal body with effluent confining zone; connecting flexible, corrugated pipes to drainage apertures |
| 04/08/2004 | US20040064881 Toilet system with a toilet pan |
| 04/08/2004 | DE10156563B4 Straßenwasser-Absetz- und Versitzgrube Street water sedimentation and septic tank |
| 04/01/2004 | WO2004027175A1 Buoyancy flushing apparatus and method of flushing |
| 04/01/2004 | WO2003025346A3 Drain sealing device |
| 04/01/2004 | DE20217615U1 Dirty water collection and treatment unit, comprises a water collection container composed of a base and side walls, and a filter system |
| 04/01/2004 | DE10136161B4 Wasserleitungselement für ein Wasserableitsystem für Roh-und Regenwasser Water line element for a waterproofing system for raw water and rainwater |