| Patents for E02B 13 - Irrigation ditches, i.e. gravity flow, open channel water distribution systems (1,251) |
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| 03/16/2011 | CN101985831A Arc-shaped trapezoid channel forming device |
| 03/10/2011 | WO2011026177A1 A method of determining surface level, and a soil moisture sensor |
| 03/03/2011 | US20110052320 Graywater recycling system including rainwater recovery |
| 02/24/2011 | WO2011020143A1 Flow meter assembly, gate assemblies and methods of flow measurement |
| 02/24/2011 | US20110044760 Underground infiltration tank module |
| 02/24/2011 | CA2771310A1 Flow meter assembly, gate assemblies and methods of flow measurement |
| 02/09/2011 | EP2281949A2 Control gate |
| 02/02/2011 | EP2280121A2 Control gate |
| 02/02/2011 | CN101509246B Anti-seepage antifreezing spray finishing method of polyurethane polymeric material for channel |
| 01/26/2011 | CN201722814U Step type solar energy-saving greenhouse using natural precipitation in irrigation and a mountain as rear wall |
| 01/26/2011 | CN201722674U Tidal water supply device for farming |
| 01/19/2011 | CN201713795U Water gate for adjusting water level in paddy field |
| 01/13/2011 | US20110008105 Protective irrigation apparatuses, systems, and methods |
| 01/12/2011 | CN201704678U Flap type water drainer |
| 01/11/2011 | US7866919 System and method for controlling water flow between multiple reservoirs of a renewable water and energy system |
| 01/06/2011 | WO2011002500A1 Corrugated leaching chambers having pillars and wide peak corrugations |
| 01/06/2011 | WO2011001427A1 Irrigation conduit and system |
| 01/06/2011 | CA2765648A1 Corrugated leaching chambers having pillars and wide peak corrugations |
| 01/05/2011 | EP2270461A1 Loss detection system for open channel networks |
| 01/05/2011 | DE102010002912A1 Seepage pipe for use in agricultural applications, has corrugation troughs provided between wave crests and comprising width in area of peripheral surfaces, where width of corrugation troughs is greater than width of peripheral surfaces |
| 01/05/2011 | CN201696685U Energy-saving bilateral tipping flap valve |
| 01/05/2011 | CN201696684U Energy-saving left turning flap valve |
| 01/05/2011 | CN201695383U Dustpan-shaped overflow intelligent water gate device |
| 01/05/2011 | CN101935996A Method and device for automatically controlling water levels of multiple channel sections |
| 01/04/2011 | US7862254 Underground root margin even irrigation apparatus |
| 12/30/2010 | US20100329786 Fluid and Nutrient Delivery Irrigation System and Associated Methods |
| 12/28/2010 | US7857545 Variable volume drain field system |
| 12/23/2010 | US20100322711 Article for use in a fluid diversion system |
| 12/22/2010 | CN201678988U Measuring weir with variable elevation of weir crest |
| 12/22/2010 | CN201678987U Man-made underground river |
| 12/15/2010 | CN201672109U Square two-sided hinged flap-gate valve |
| 12/15/2010 | CN201672108U Energy saving type right turned type gate knocking valve |
| 12/15/2010 | CN101914909A Multifunctional irrigation and drainage system |
| 12/08/2010 | CN201666799U Integrated logging well with protective layer |
| 12/08/2010 | CN101906769A Control gates |
| 11/30/2010 | US7841801 Splash plate |
| 11/25/2010 | US20100296871 Trench for storing and/or seeping/retaining surface water |
| 11/25/2010 | US20100296870 Subirrigation system |
| 11/24/2010 | CN201649051U Anti-deformation combined penstock |
| 11/17/2010 | CN201635061U Rectifying structure for lateral drainage |
| 11/17/2010 | CN201635053U Pneumatic type gate open-close system |
| 11/16/2010 | US7832959 Method of restoration of a highly saline lake |
| 11/11/2010 | US20100284744 Watering Device, Method for Manufacturing Said Device, and Means Therefor |
| 11/10/2010 | CN101881034A Milling and planing system |
| 10/27/2010 | CN201614574U 灌溉水渠水流转向闸 Irrigation canals flow steering brake |
| 10/20/2010 | CN101864816A Stepped solar energy saving greenhouse capable of irrigating by natural rainfall and taking mountain massif as rear wall |
| 10/20/2010 | CN101024936B All-area covering vaporization-proof water-saving method |
| 10/13/2010 | CN201605193U 一种环形滗水器 A toroidal decanter |
| 10/07/2010 | US20100254765 Diverting storm surge-apparatus & method |
| 10/07/2010 | US20100251789 Global Warming Mitigation Method |
| 09/30/2010 | WO2010088731A9 Undershot sluice gate |
| 09/30/2010 | US20100243546 Back-water trap for a floor drain system |
| 09/29/2010 | CN201593178U Sluice gate for irrigation canal for paddy rice |
| 09/29/2010 | CN201593177U Irrigation water delivery buffer groove |
| 09/21/2010 | US7798746 Modular, self contained, engineered irrigation landscape and flower bed panel |
| 09/08/2010 | CN101476310B Free two-side turning door |
| 09/07/2010 | US7792126 Distributed monitoring and control system |
| 09/01/2010 | CN201567553U Novel ditch structure |
| 09/01/2010 | CN101818492A Water distribution system and irrigation method for master and secondary channels |
| 09/01/2010 | CN101560757B Seepage-intercepting and pollutant-removing system of large channel non-water passing slope |
| 08/25/2010 | CN101812833A Circulation water electricity generation and irrigation dual-purpose system |
| 08/18/2010 | CN201554223U Agricultural irrigation and drainage in-situ cast cement covered channel construction machine tool |
| 08/18/2010 | CN201554014U Multifunctional manual hoist chamber |
| 08/18/2010 | CN201554013U Ecological pollution-decreasing drainage canal |
| 08/12/2010 | WO2010088731A1 Undershot sluice gate |
| 08/11/2010 | CN201546210U Galvanized threaded pipe type irrigation open canal |
| 08/11/2010 | CN101446082B Construction method of building anti-permeability channel using soil curing agent |
| 08/05/2010 | US20100196099 Storm Water Retention Chambers |
| 07/29/2010 | US20100189507 Method and product for absorbing and consolidating nuisance water or slurry accumulations |
| 07/28/2010 | CN101787685A Pneumatic type gate opening/closing system |
| 07/14/2010 | CN201526040U Tiles for water channels |
| 07/14/2010 | CN101775791A Round middle ring water and sand separating device |
| 07/07/2010 | EP2204503A2 Method and system for providing a planned path for a machine for digging a drainage channel |
| 07/07/2010 | CN201520962U Pouring-type water ditch |
| 07/07/2010 | CN201520931U Chute used for building, water conservancy and road engineering |
| 06/30/2010 | CN201517205U System for utilizing natural runoffs of mountain |
| 06/30/2010 | CN101761058A Leakage stopping technology of weir pond paddy field |
| 06/29/2010 | US7743696 Root and water management system for potted plants |
| 06/24/2010 | US20100155340 Rainwater capture and dispensation method |
| 06/23/2010 | CN201512795U Large-span concrete slope masonry machine |
| 06/23/2010 | CN201512794U Row vibration sliding mode sloping surface masonry machine |
| 06/23/2010 | CN201512793U Large-span high-effective multi-functional concrete slope masonry machine |
| 06/23/2010 | CN201512775U Cement channel |
| 06/17/2010 | US20100147054 Loss detection system for open channel networks |
| 06/16/2010 | CN101736721A Back stop device of drain pipe of irrigation seepage control canal |
| 06/15/2010 | CA2420241C Control gates |
| 06/09/2010 | CN1952268B Control gates |
| 06/01/2010 | US7726906 Systems and methods for harnessing resources |
| 05/27/2010 | US20100129154 Automatic gated pipe actuator |
| 05/26/2010 | CN201485833U Anti-water theft durable water outlet for irrigation pipeline |
| 05/26/2010 | CN201485832U Vibration type U-shaped canal continuous forming machine |
| 05/26/2010 | CN201485824U Seepage-proof lining |
| 05/26/2010 | CN101713184A Channel seepage-guiding and non-return system |
| 05/20/2010 | US20100122945 Grey water conservation mechanism |
| 05/19/2010 | CN201473937U Simple water gate of irrigation ditch |
| 05/12/2010 | CN101705672A Method for designing ecological pollution reducing drainage channel |
| 05/05/2010 | CN201447693U Diversion channel concrete prefabricated element |
| 04/22/2010 | US20100098490 Drain pipe |
| 04/15/2010 | US20100092241 Canal Seepage Detection |
| 04/14/2010 | CN201437640U Double-faced framework erection steel bracket |