| Patents for E02B 11 - Drainage of soil, e.g. for agricultural purposes (2,085) |
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| 08/28/2013 | CN203160214U Drainage device on rice field |
| 08/28/2013 | CN203160213U Ditch structure for ditching, draining and snail-controlling on outer bottomland |
| 08/27/2013 | US8518201 Method of manufacturing a tubing for a subsurface water drainage system |
| 08/22/2013 | US20130216310 System for fluid containment and venting |
| 08/21/2013 | CN203144987U Reinforced soil slope protection processing device for water outlet of drainage concealed conduit |
| 08/21/2013 | CN203144986U Discharging and guiding arrangement structure of debris flow ditch |
| 08/21/2013 | CN102792846B Wheat-corn double cropping symbiotic cultivation method in moderate saline-alkali soil based on buried pipe drainage and salt elimination |
| 08/14/2013 | CN203129109U Retaining wall backflow-preventing water drain pipe |
| 08/14/2013 | CN203129108U PVC drainage canal |
| 08/14/2013 | CN203120609U Infiltrating subsurface irrigation and drainage system |
| 08/14/2013 | CN103243694A Reinforced soil composite structure drainage ditch |
| 08/08/2013 | WO2013113410A1 A drain element |
| 08/08/2013 | CA2856362A1 A drain element |
| 08/07/2013 | CN203113287U Ecological interception ditch for agricultural non-point source pollution |
| 08/07/2013 | CN203112595U Non-point source pollution prevention and control and resource cyclic utilization system for tea garden |
| 08/07/2013 | CN103233445A Filtering ecological concrete drainage channel |
| 08/01/2013 | WO2013110629A1 Drain trench body connecting element |
| 08/01/2013 | WO2013002527A9 Prefabricated drain structure |
| 07/25/2013 | US20130189034 Composite material |
| 07/25/2013 | DE102012100560A1 Rigolenkörper-Verbindungselement Trench body connection element |
| 07/25/2013 | DE102012100555A1 Deckelelement Cover element |
| 07/25/2013 | DE102012100552A1 Rigolenkörperflächeneinheit Rigolenkörperflächeneinheit |
| 07/24/2013 | CN203080497U Irrigation and drainage gate |
| 07/23/2013 | US8491224 Plastic detention chamber for stormwater runoff and related system and methods |
| 07/17/2013 | CN203066044U Glass reinforced plastic nested drainage well |
| 07/17/2013 | CN203066032U Chute for water conservancy |
| 07/17/2013 | CN203057988U Water-saving irrigation and storm drainage device |
| 07/10/2013 | CN203049555U Rice field draining device |
| 07/09/2013 | US8479815 Desalination subsurface feedwater supply and brine disposal |
| 07/03/2013 | CN203034430U Earthwork standard room type ecological ditch |
| 06/25/2013 | US8469631 Modular and easy to assemble grilled cover piece for drainage channels |
| 06/20/2013 | US20130152499 Water retention/detention structure formed from identical panels |
| 06/19/2013 | CN203008104U Plastic drainage blind ditch |
| 06/12/2013 | CN202989886U Bedrock face or concrete face water absorbing device |
| 06/12/2013 | CN202989885U Double-wing wedge-shaped cover plate of novel oblique slot flood discharge system |
| 06/12/2013 | CN103154377A Irrigation system and method |
| 06/06/2013 | US20130142573 Safety edge sports channel |
| 06/05/2013 | CN202969350U Channel for discharging wastewater rapidly |
| 06/05/2013 | CN202968309U Farmland radial-flow discharge-port purification device |
| 05/29/2013 | CN202954349U Water-saving and farmland-saving farmland drainage and irrigation device |
| 05/28/2013 | US8449219 Water-storage and water-purification system |
| 05/28/2013 | CA2675810C Groundwater control system with automatic water flow regulator |
| 05/23/2013 | US20130129420 Berm and method of construction thereof |
| 05/22/2013 | CN103112954A Method for prevention and control of non-point source pollution and cyclic utilization of resources of tea garden and system thereof |
| 05/16/2013 | DE102011086016A1 Rigoleneinheit und aus derartigen Rigoleneinheiten gebildete Transporteinheit Drainage trench and transport unit formed from such Rigoleneinheiten |
| 05/15/2013 | CN202936768U Precast drainage ditch |
| 05/15/2013 | CN103103967A Irrigation and draining brake |
| 04/24/2013 | CN202899105U Infiltration-filtering integral composite water drainage pipe used for farmland drainage |
| 04/24/2013 | CN202899104U Loess terrace riser soil and water conservation guide slot |
| 04/24/2013 | CN202899103U Tree pit bottom spray drain structure |
| 04/24/2013 | CN202899102U Multifunctional paddy field sluice valve |
| 04/24/2013 | CN103061327A Comprehensive water control technique for dump |
| 04/23/2013 | US8425148 Storm water retention chambers with arch shaped row connector and method of connecting molded chamber structures |
| 04/17/2013 | CN202881907U Full-automatic water saving irrigation and drainage anti-permeability canal cast-in-situ molding machine |
| 04/17/2013 | CN103046536A Comprehensive waste dump water controlling method applicable to soft foundations |
| 04/16/2013 | US8419311 Surface drainage system |
| 04/10/2013 | CN202865810U Novel ditch system for tea garden |
| 04/03/2013 | CN202850001U A water drainage and storage plate |
| 04/03/2013 | CN103015382A Agricultural non-point source pollution ecological intercepting ditch |
| 04/03/2013 | CN103015381A Open trench control drainage device for rice-wheat crop rotation farmlands |
| 03/27/2013 | CN202830900U Drain device for soil improvement |
| 03/27/2013 | CN202819176U Big tree transplanting full-automatic filter and drainage system |
| 03/26/2013 | US8403596 Groundwater control system and method |
| 03/21/2013 | US20130071186 Foundation Stabilization System and Method of Use |
| 03/21/2013 | DE102012105057A1 Rainwater drainage device installed in parking lot, has closure caps that are provided at upper surfaces of perforated hollow sections which are connected with each other through connection structure |
| 03/20/2013 | CN202809628U Permeable pipe |
| 03/20/2013 | CN202809573U Drainage device for garden nursery |
| 03/20/2013 | CN102979065A Novel draining pipe for gardens |
| 03/20/2013 | CN102972197A Vegetation recovery method for nonferrous metal mining wasteland |
| 03/13/2013 | CN202787200U Furrowing device matching with combined harvester |
| 03/13/2013 | CN202787199U Ecological water and stain drainage control device of paddy field |
| 03/13/2013 | CN202787198U Paddy field ecological irrigation and drainage district based on sustainable utilization |
| 03/13/2013 | CN202787197U Dewatering pad |
| 03/13/2013 | CN102966083A Ecological ditch constructing method for controlling nitrogen and phosphorus in farmland drainage |
| 03/13/2013 | CN102960141A Watercress planting field |
| 03/07/2013 | US20130058721 Drainage management system and method |
| 02/28/2013 | WO2013002527A3 Prefabricated drain structure |
| 02/21/2013 | DE102011107689B4 Einbaukörper Concealed body |
| 02/20/2013 | CN202745022U Plastic drainage channel |
| 02/14/2013 | WO2013021333A1 Apparatus and method for channelling groundwater |
| 02/14/2013 | CA2845999A1 Apparatus and method for channelling groundwater |
| 02/13/2013 | CN202730729U Water quality and water level controller for farmlands |
| 02/13/2013 | CN202730728U Drainage channel |
| 02/13/2013 | CN202730717U Water drainage channel |
| 02/13/2013 | CN102926363A Method for reducing groundwater level of low-lying tea plantation |
| 02/13/2013 | CN102926362A Pollution control and emission reduction method for farmland drainage |
| 02/13/2013 | CN102919102A Irrigation and drainage integrated device suitable for underground high water level |
| 02/13/2013 | CN102918953A Waterlogging preventing cultivation technology of persimmon fruit by using high mounds and high ridges |
| 02/13/2013 | CN102145957B Method for constructing agricultural drainage and ecological purification system |
| 02/13/2013 | CN102026540B Flexible drainage cell |
| 01/31/2013 | DE102011052311A1 Strukturelement Structural element |
| 01/30/2013 | EP2551409A2 Structural element for use under a floor surface |
| 01/30/2013 | DE202012011832U1 Vorrichtung, zweier senkrecht, ineinander stehender Sickerrohre, zur Reinigung von verschmutztem Niederschlagswasser, oder dergleichen und Ableitung in den Untergrund Device, two vertical, standing seepage into each other, for cleaning of polluted storm water, or the like, and discharge into the subsoil |
| 01/30/2013 | CN102900060A Geo-cell type ecological ditch |
| 01/30/2013 | CN102900059A Combined draining and saline controlling system for saline and alkaline land |
| 01/23/2013 | CN202688972U Hydrophobic filtering tube |
| 01/23/2013 | CN202688971U Strong absorption drain pipe |
| 01/23/2013 | CN102888829A Farmland underground water drainage design method |
| 01/17/2013 | WO2013009706A1 Systems and methods for digestion of solid waste |
| 01/17/2013 | DE102011107689A1 Einbaukörper Concealed body |