| Patents for E03F 3 - Sewer pipe-line systems (3,593) |
|---|
| 11/06/1997 | WO1997041381A1 Process for leak proof connection of branch lines to rehabilitated sewer pipes |
| 11/05/1997 | EP0805301A2 Insert and procedure for the renovation of leaking pipe walls using such an insert |
| 11/04/1997 | US5683748 Process for protecting concrete sewer pipes |
| 10/28/1997 | US5681455 Flowing-down rainwater flow-separating pipe |
| 10/23/1997 | DE19720035A1 Concrete-pipe-identification system - forms permanent markings in inside surface at intervals round periphery |
| 10/23/1997 | DE19615351A1 Pin-and-socket pipe joint seal |
| 10/22/1997 | CN2265409Y Reinforced concrete wire-inlaid filter-pipe |
| 10/08/1997 | CN2264214Y Reinforced concrete water filtering pipe |
| 10/07/1997 | US5673723 Vacuum sewerage system |
| 10/02/1997 | WO1997036128A1 Connector for concrete pipes |
| 10/01/1997 | EP0797499A1 Surfacing or rehabilitating structures without supporting forms |
| 10/01/1997 | CN2263677Y Glass fiber reinforced plastic made energy dissipation device for drainage |
| 09/30/1997 | US5672029 System for pipe rehabilitation |
| 09/24/1997 | EP0796374A1 Method and apparatus for adding a double liner to a trench |
| 09/18/1997 | DE19610205A1 Aeration system for sewage water entering offtake pipe at bottom of shaft |
| 09/17/1997 | EP0795714A1 Expandable sleeve for the internal renovation of pipelines |
| 09/11/1997 | CA2199680A1 Method and apparatus for providing a constant extrusion pressure for pipeline lining |
| 09/10/1997 | CN2262055Y Inner connected three-way drainage vertical pipe |
| 09/02/1997 | US5662432 For pushing new pipe sections into an existing pipeline |
| 08/27/1997 | CN1158161A Apparatus for reference laser level setting |
| 08/21/1997 | DE19604593C1 Method for subsequent installation of entry shafts in forward press pipelines |
| 08/20/1997 | EP0790360A1 Drainage channel |
| 08/14/1997 | DE19604835A1 Drainage channel wall seal |
| 08/13/1997 | EP0789111A1 Modular gutter for drainage channels |
| 08/12/1997 | US5655564 Septic system plastic distribution box with integrally fastened seal |
| 08/12/1997 | CA2073678C Vacuum sewerage system with increased lift capabilities having electric air admission controllers |
| 08/06/1997 | EP0787269A1 Method and device for renovating drains |
| 08/05/1997 | US5653555 Multiple resin system for rehabilitating pipe |
| 08/05/1997 | US5653553 Drainage channel and associated method |
| 07/31/1997 | DE19603145A1 Moulding semi-finished product |
| 07/29/1997 | US5651848 Method of making three dimensional articles from rigidizable plastic composites |
| 07/24/1997 | DE19513965C1 Damage-repair equipment for between underground main and branch-pipe |
| 07/17/1997 | WO1997025481A1 Apparatus for lining a trench |
| 07/17/1997 | WO1997025160A1 aETHOD OF PREVENTING CORROSION IN CONCRETE PIPE |
| 07/17/1997 | DE19620239C1 Pipeline maintenance method for water drains |
| 07/17/1997 | DE19601041A1 Method for repairing pipe joint seal |
| 07/15/1997 | US5647692 Edge adapter for athletic playing surface and associated method |
| 07/15/1997 | US5647689 Drainage channel grates for athletic playing surfaces and associated methods |
| 07/09/1997 | EP0783060A1 Gutter |
| 07/08/1997 | US5645367 Drainage system having an embedded conduit connector |
| 06/18/1997 | CN1152061A Composite non-metal drain pipe |
| 06/12/1997 | WO1997021003A1 Sewerage and purification channel system for polluted liquids and/or communal waste water |
| 06/12/1997 | WO1997020993A1 Drainage channel grates for athletic playing surfaces and associated methods |
| 06/12/1997 | WO1997020992A1 Edge adapter for athletic playing surface and associated method |
| 06/12/1997 | WO1997020991A1 Drainage channel and associated method |
| 06/12/1997 | DE19545219A1 Method and appliance for laying pipes, especially sewage pipes |
| 06/11/1997 | EP0777835A1 Process for renovating feed and discharge pipes and shafts |
| 06/11/1997 | EP0777790A1 System and apparatus for relining or forming a trench |
| 06/04/1997 | EP0776439A1 Process for internally coating hollow bodies |
| 05/29/1997 | WO1997019290A1 Device for repairing pipelines |
| 05/29/1997 | WO1997019228A1 Trench forming assembly having a counterbuoyancy member and associated method |
| 05/22/1997 | DE19543013A1 Sanierungsgerät zur Sanierung von Kanalrohren Rehabilitation equipment for the rehabilitation of sewer pipes |
| 05/14/1997 | EP0773427A1 Apparatus for reference laser level setting |
| 05/13/1997 | US5628585 Method and apparatus for removal of utility line and replacement with polyolefin pipe |
| 05/07/1997 | DE19611682C1 Connection pipe socket for concrete sewer pipes |
| 05/06/1997 | US5626442 Pipe rehabilitation system and methods |
| 05/02/1997 | EP0770735A1 Underground buffer tank for storing and treating rain water |
| 05/02/1997 | EP0666944A4 Apparatus for forming a multi-walled containment trench. |
| 04/30/1997 | DE19538557A1 Process to replace buried gas or water supply pipes in sections |
| 04/30/1997 | CN2253364Y Eccentric centrifugal sewer pipe joint |
| 04/29/1997 | US5624123 Pipe seal assembly for poured concrete on-site waste disposal system components |
| 04/29/1997 | CA2105787C Slotted drain |
| 04/17/1997 | DE19538113A1 Prefabricated pin and socket concrete pipe abutment cushion |
| 04/15/1997 | US5620744 Method of preventing corrosion in concrete pipe |
| 04/10/1997 | DE19618050A1 Device for deep pipe canal excavation |
| 04/09/1997 | EP0767278A1 Drip gutter system |
| 04/08/1997 | US5618616 Multi-layer liner for waste water system rehabilitation |
| 04/03/1997 | WO1997012098A1 Circulating drainage system for sewage pipe installation work |
| 04/03/1997 | WO1997012097A1 Circulating drainage system for sewage pipe installation work |
| 03/27/1997 | DE19535596A1 Pin and socket join for tiled concrete pipe, etc. |
| 03/25/1997 | US5613804 Holding means for securing a liner to a trench |
| 03/25/1997 | CA2003152C Flash flood control units for housing |
| 03/13/1997 | DE19533436A1 Sealing device for sewer walls |
| 03/11/1997 | US5609439 Method of and apparatus for repairing and sealing junctions between mains and branch pipes |
| 02/26/1997 | EP0759135A1 Element for renovating ducts, drainage pipes, garbage dumping pipes and the like |
| 02/04/1997 | US5599597 Concrete molding with improved acid resistance |
| 02/04/1997 | CA2069155C Method and apparatus for installing a pipe liner |
| 01/23/1997 | DE19625073A1 Digging=free system for laying underground drain seepage pipes |
| 01/23/1997 | DE19526302A1 Subsequent bore drilling mechanism in underground, repaired pipes |
| 01/15/1997 | EP0646204A4 Drywell cover and drywell. |
| 01/08/1997 | CN2244576Y Automatic gallery slip form car |
| 01/02/1997 | DE19621039A1 Rain or drain overflow channel |
| 01/02/1997 | DE19620978A1 Entwässerungsrinne Drainage channel |
| 01/02/1997 | DE19619039A1 Embossed components used in building elements |
| 01/02/1997 | DE19523970A1 Safety-device for drain gutter |
| 12/31/1996 | US5589131 Method for manufacturing a replacement pipe for installation in an existing conduit |
| 12/31/1996 | US5588458 Vacuum valve controller for vacuum sewer system |
| 12/25/1996 | CN1138650A Water saving circulating utilization system |
| 12/24/1996 | US5587126 Method of manufacturing a pipe liner for installation in an existing conduit |
| 12/19/1996 | WO1996040451A1 Protective coating for concrete sewer pipes |
| 12/19/1996 | DE19622819A1 Functional unit for control and cleansing pipes in drainage lines |
| 12/18/1996 | EP0748971A2 Method and device for removing, without excavation, lead and plastic pipes laid in the ground |
| 12/18/1996 | EP0748903A1 Security device for a drainage channel |
| 12/18/1996 | EP0748430A1 Process for producing tight joints for domestic connector pipes and similar feed pipes in sewers |
| 12/11/1996 | CN1033529C Method for laying well and pipe line directly on top pipe line |
| 12/05/1996 | WO1996038292A1 Rigidizable plastic composites and manufacturing method therefor |
| 12/05/1996 | DE19520510A1 Sealing assembly for concrete pipes |
| 12/03/1996 | US5580406 Surfacing or rehabilating structures without supporting forms |
| 11/28/1996 | WO1996037755A1 Apparatus for reference laser level setting |
| 11/20/1996 | EP0613538B1 Seal between two interlocking components |