Patents
Sitemap › E02 - Hydraulic engineering; Foundations; Soil-shifting › E02B - Hydraulic engineering › E02B 11 - Drainage of soil, e.g. for agricultural purposes
Patents for E02B 11 - Drainage of soil, e.g. for agricultural purposes (2,085)
04/2004
04/07/2004CN1487147A Drainage ditch
04/06/2004CA2286995C Multi-level leaching system
03/2004
03/30/2004US6712554 Modular drainage unit
03/30/2004CA2252286C Reversible interlocking field drain panel
03/25/2004US20040057797 Liquid drainage unit
03/17/2004CN1142055C Large surface area high tensile strength earth mat, its manufacturing method,device and application
03/09/2004US6702517 Pipe assembly for collecting surface water runoff and associated methods
03/04/2004DE20317679U1 Drainage shaft cylinder for drainage water comprises a square shaft cylinder made from plastic, an assembly strip arranged on the surface to stabilize spacers, and nails for connecting a drainage water waste line to a tubular shaft
02/2004
02/24/2004US6695538 Drainage pipe support/diverter system
02/05/2004US20040022583 Drainage element for walls and septic tank systems
01/2004
01/28/2004CN1136364C Drainage method and drain pipe using said method
01/20/2004US6679653 Leaching or drainage gallery with increased surface area
12/2003
12/17/2003CN1131354C Soil and water Conservation method of shoulder and band drainage device used for the method
12/10/2003CN2591094Y Water permeable core body
12/10/2003CN2591093Y Vertical water-permeable pipe core pipe
12/10/2003CN2591086Y Road edge longitudinal water blocking gutter
12/09/2003US6659687 Subterranean fluid distribution and drainage system
12/04/2003US20030224143 Fuzzy woven layers, geocomposite laminates incorporating them, and related methods
12/04/2003US20030223819 Void-maintaining synthetic drainable base courses and methods for extending the useful life of paved structures
11/2003
11/27/2003WO2003038227A3 Filter train for underground collecting mains and method for introducing said filter train into predetermined layers of soil
11/18/2003US6648550 Subterranean drainage device
11/18/2003US6648549 Underground water infiltration, storage and slow release system
11/13/2003US20030210955 Mitred grate and drain cover
11/04/2003US6641335 Erosion control rolls
10/2003
10/30/2003US20030200708 Drainage and footing form device
10/22/2003CN2581515Y Water permeable core
10/22/2003CN2581514Y Water permeable coreboard
10/22/2003CN2581499Y Water permeable body core
10/15/2003CN1448589A Water-discharging body
10/09/2003WO2003083224A1 Irrigation method and apparatus therefor
10/02/2003US20030186007 Process for manufacturing a porous drainage medium
09/2003
09/17/2003CN1442583A Interlinked water permeable pipe and its connection method
07/2003
07/16/2003CN1429951A Convex water Permeable plate
07/16/2003CN1429949A Convex water draining plate
07/10/2003US20030129043 Portable irrigation pipe installation system
07/02/2003EP1323868A1 A method for inserting a drainage wick
06/2003
06/26/2003US20030118405 Method of construction for draining the ground and the like
06/26/2003US20030118404 Structural modular interconnectable subsoil drainage cell
06/26/2003US20030118403 Drainage system for sports fields
06/26/2003US20030118402 Corrugated plate of plastics used for method of construction for draining the ground and the like
06/25/2003CN1425832A Combined water draining device and its connecting method
06/10/2003CA2140433C Retractable hose
06/03/2003US6572718 Method for producing large surface area geogrids with high tensile strength
05/2003
05/16/2003CA2385819A1 Sub-base drainage device
05/13/2003US6561732 Sewage pipes
05/13/2003US6561731 Portable irrigation pipe installation and removal system
05/08/2003WO2003038227A2 Filter train for underground collecting mains and method for introducing said filter train into predetermined layers of soil
05/01/2003US20030082004 Bunker drain system
03/2003
03/26/2003CN2541513Y Flexible pervious pipe
03/26/2003CN2541512Y Lodging-resistant flexible pervious pipe
03/05/2003CN2538849Y High-rigid permeable hose
03/04/2003US6527477 Erosion control rolls
02/2003
02/26/2003EP0646213B2 Process and tool for laying underground collector mains for liquids and gases
02/25/2003US6524424 Providing in warp direction a plurality of strips having channels formed longitudinally therein, feeding strips into bonding zone wherein filter material is bonded over channels, bonding strips transverse to warp to form weft
02/20/2003WO2003014484A1 Pipe assembly for collecting surface water runoff and associated methods
02/20/2003DE20215915U1 Double-sided horizontal pipe shaft with a lower and upper rinsing tube guide on both sides for drainage pipes comprises an angular or round pipe bend or a straight pipe consisting of a pipe bend having a guide line on its surface
02/13/2003US20030031512 Pipe assembly for collecting surface water runoff and associated methods
02/12/2003CN2535442Y Water-discharge tape connector
02/11/2003US6517284 Reservoir drainage system
02/11/2003US6517283 Cascading chute drainage system
02/10/2003CA2367233A1 Pipe assembly for collecting surface water runoff and associated methods
02/05/2003EP1280965A1 Structural modular interconnectable subsoil drainage cell
01/2003
01/29/2003CN2533157Y Water permeable pipe
01/14/2003US6505996 Drainage system with unitary void-maintaining geosynthetic structure and method for constructing system
01/01/2003CN2528802Y Permeable board with discrete humb
01/01/2003CN2528800Y Bent-type permeable board with groove
12/2002
12/24/2002US6497031 Apparatus for manufacturing drainage line units and associated methods
12/11/2002CN2525123Y Water permeable plate
12/11/2002CN2525122Y Convexed water drain board
12/11/2002CN2524489Y Water draining belt
12/05/2002DE10123754A1 Rigolenanordnung sowie Rigolenbauteil zu dessen Aufbau Rigolenanordnung and Rigolenbauteil to the structure
11/2002
11/27/2002EP1260640A1 Leaching unit
11/21/2002US20020172557 Geopipe with partial perforated structure
11/20/2002CN2521255Y Net blind drain infiltration pipe
11/19/2002US6481927 Assembly and method for joining a drain pipe and a catch basin
10/2002
10/31/2002WO2002040784A3 Sub-base drainage device
10/24/2002US20020155237 Filters surrounding core of flexible plastic pipe; overcoated with chitosan; water pollution control
10/24/2002US20020154951 Reservoir drainage system
10/23/2002CN1375392A Holed pipe and its producing apparatus and method
10/22/2002US6467996 Polystyrene beads for drainage fields
10/17/2002US20020150428 Assembly and method for joining a drain pipe and a catch basin
10/16/2002CN2516596Y Compound reinforced drainage pad
10/10/2002US20020144764 Large surface area geogrids with a high tensile strength, a method and apparatus for producing them, and their use as drain and reinforcement grids and as fences
10/08/2002US6461078 Plastic sewage pipe
09/2002
09/17/2002US6450731 System for applying a liquid, such as a deicing liquid, upon a pavement surface
09/12/2002US20020124899 Porous pipe and apparatus and method of producing the same
09/03/2002US6443652 Aggregate chamber leach lines for leaching effluent and associated method
08/2002
08/21/2002CN1365410A Material for use in a fluid transfer system
08/06/2002US6428870 Subsurface fluid drainage and storage system and mat especially utilized for such system
07/2002
07/31/2002EP1227189A2 Underdrain excavation apparatus
07/31/2002EP1226315A1 Modular drainage channels
07/18/2002US20020094237 Cascading chute drainage system
07/10/2002CN1357670A Saline-alkaline land tackling method to break several hardened clay layers
07/03/2002EP1218142A1 Apparatus for manufacturing drainage line units and associated methods
06/2002
06/26/2002EP1216328A1 Modular drainage unit
06/26/2002EP0672214B1 Stabilized porous pipe
06/19/2002EP1215339A2 System for placing and removing draining systems
06/11/2002US6402963 Plurality of panels filled with granular filtering material separated by elements cast in the ground, member emdedded in the element and auxiliary devices
06/06/2002US20020066214 Underdrain excavation apparatus
05/2002
05/30/2002US20020064427 Drain field apparatus and method
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