| Patents for A01G 25 - Watering gardens, fields, sports grounds, or the like (11,921) |
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| 06/25/1991 | US5025589 Method and apparatus for growing bean sprouts |
| 06/19/1991 | CN2078965U Pressure-reducing drop leakage water pipe structure |
| 06/18/1991 | US5025361 Watering control system |
| 06/18/1991 | US5024555 Sub-surface irrigation system |
| 06/12/1991 | EP0431744A2 Device to maintain two elongate members in substantial alignment and mobile irrigator using such a device |
| 06/11/1991 | US5023787 Irrigation control and flow management system |
| 06/11/1991 | US5022940 Process of making a drip irrigation conduit |
| 06/06/1991 | DE3940049A1 Supplying measured doses of water to plants - involves lever in container whose ends are connected to inlet and outlet valves |
| 06/04/1991 | US5021939 Computerized sprinkler control system |
| 06/04/1991 | US5020730 Automatic irrigation machine including a drum driven by a hydraulic actuator, and a computer for regulating the actuator rate |
| 06/04/1991 | US5020722 Selectively controllable sprinkler system for lawns, yards, gardens and the like |
| 06/04/1991 | US5020271 Watering devices |
| 05/29/1991 | DE4037396A1 Irrigation line - has central hose with porous surround to bury at root level |
| 05/21/1991 | US5016664 Automatic switching valve |
| 05/16/1991 | WO1991006902A1 Hygrostatic control device |
| 05/15/1991 | EP0426985A2 Butterfly valve for the control of the irrigation reels |
| 05/08/1991 | CN2076311U Drip irrigation type spray pipeline structure |
| 05/04/1991 | CA2029124A1 Pivot |
| 04/30/1991 | US5012110 Substrate and process and apparatus for the production therefor |
| 04/30/1991 | US5011081 Irrigation system having underhead sprinkler valve |
| 04/30/1991 | US5011034 Garden hose concealing arrangement including independently usable lid |
| 04/23/1991 | US5009368 Constant-pressure, variable-volume irrigation sprinklers |
| 04/11/1991 | DE4030601A1 Clockwork timer for watering systems - has individually adjustable cam knocker(s) to control water flow of each outlet |
| 04/09/1991 | US5005790 Hose holding fixture |
| 04/03/1991 | EP0420732A1 Trickle irrigation device with branch couplings |
| 04/03/1991 | CN2074100U Backwash filter unit for agricultural irrigation pipe |
| 04/02/1991 | US5004161 Adjustable miniature watering device |
| 04/02/1991 | US5003726 Method for protecting drip irrigation hoses and other structures from root intrusion |
| 03/30/1991 | CA2026085A1 Point irrigation apparatus with branch connections |
| 03/27/1991 | EP0418298A1 Control valves and method of plant growing using flow control. |
| 03/27/1991 | CN2073659U Hanging translational type micro-sprinkler |
| 03/26/1991 | US5002428 Irrigation method |
| 03/21/1991 | WO1991003156A1 Irrigation management control |
| 03/21/1991 | WO1991003155A1 Irrigation pipes and process and device for making them |
| 03/07/1991 | WO1991002455A1 Valve apparatus |
| 02/19/1991 | US4993640 Fluid control system |
| 02/19/1991 | US4993634 Programmable chemical application system |
| 02/13/1991 | CN1011564B Drip irrigation pipe |
| 02/05/1991 | US4989628 Moisture-responsive valve assembly |
| 01/31/1991 | DE3924795A1 Fluid connection for water conduit components - consists of fluid coupling with parts sealed towards coupling axis |
| 01/29/1991 | US4987917 Controller synchronization to a sequencing distributing valve |
| 01/29/1991 | US4987915 Automatic water control apparatus |
| 01/16/1991 | EP0408541A1 Compact transmission |
| 01/15/1991 | US4985638 Valve control circuit for irrigation system |
| 01/15/1991 | US4984739 Drip irrigation hose |
| 01/10/1991 | WO1991000003A1 Mobile hose-winding apparatus |
| 01/09/1991 | EP0245372B1 Correction control for a linear-displacement spray device |
| 01/02/1991 | EP0406220A1 Flexible slotted pipe and fluid pick-up unit for use with a slotted pipe |
| 12/27/1990 | EP0404217A1 Unit for driving the hose winding drum of automatic irrigation sprinklers in general |
| 12/19/1990 | CN1047782A Construction technology and apparatus of gunite pipe in horizontal drilling |
| 12/13/1990 | DE4013992A1 Mobile field irrigator - has connection supports on individual irrigation tubes |
| 11/29/1990 | DE3917203A1 Irrigation installation made of hollow profile sections - has sections connected together with special coupling elements |
| 11/28/1990 | EP0399006A1 Distributed multiple irrigation controller management system. |
| 11/20/1990 | US4971253 Pressure compensating emitters for drip irrigation systems |
| 11/20/1990 | US4970973 Row crop planting apparatus for mobile pipe span-and-tower irrigation systems |
| 11/14/1990 | EP0396916A1 Device for distributing semi-liquid manure on a field |
| 11/14/1990 | CN2065394U Increasing moisture in soil and seeding device of seed plough |
| 11/13/1990 | US4969677 Pipe pulling grip |
| 11/08/1990 | DE4012822A1 Liq. distributor for plants - has duct introducing liq. between two impermeable sheets |
| 11/06/1990 | US4967789 Automatic irrigation regulator controlled by water evaporation |
| 10/31/1990 | CN2064570U Non-pipe sprinkler |
| 10/31/1990 | CN1046435A Drip irrigation pipe with embodied continuous conduit for pressure reduction and method of producing same |
| 10/23/1990 | CA1275395C Water timer |
| 10/10/1990 | EP0391889A1 Boom system to irrigate large areas |
| 10/10/1990 | EP0210240B1 Profile elements, particularly for supply and/or removal of substances from environmental and/or flow material |
| 10/09/1990 | US4962522 Electronic controller for sprinkler systems |
| 10/09/1990 | US4961531 Irrigation method and apparatus |
| 10/06/1990 | WO1990011681A1 Drip irrigation pipe with embodied continuous conduit for pressure reduction and method of producing same |
| 10/06/1990 | CA2050683A1 Drip irrigation pipe with embodied continuous conduit for pressure reduction and method of producing same |
| 09/26/1990 | EP0365639A4 Drip irrigation tube and method of manufacturing same |
| 09/26/1990 | CN2062547U Plastic dropping head with side groove |
| 09/25/1990 | US4958772 Sprinkler line for localized irrigation |
| 09/25/1990 | US4958770 From ground rubber from vehicle tire treads and polyethylene binder |
| 09/19/1990 | EP0387465A1 Irrigation machine |
| 09/12/1990 | CN1009524B Under-ground flexible pipe water-conveying method |
| 09/11/1990 | CA1273858A1 Liquid flow control valve |
| 09/05/1990 | EP0385520A1 Control device for drive units for the hose winding drum of self-propelled irrigation sprinklers |
| 09/04/1990 | US4953581 Self draining valve member for use in underground water lines |
| 08/29/1990 | EP0384867A1 Automatic irrigation machine with a drum driven by a hydraulic cylinder and a computer controlling the cadence of the cylinder |
| 08/29/1990 | CN2060968U Float-ball type hydrant for farmland irrigation |
| 08/28/1990 | US4952868 Moisture sensing system for an irrigation system |
| 08/24/1990 | CA2010832A1 Automatic irrigation machine including a drum driven by a hydraulic actuator, and a computer for regulating the actuator rate |
| 08/22/1990 | EP0382816A1 Method and apparatus for artificial irrigation of plants. |
| 08/21/1990 | US4951204 Irrigation controller having means for watering after failure in primary and back-up power supplies |
| 08/21/1990 | US4949747 Self-flushing fluid apparatus particularly useful in pulsator devices |
| 08/14/1990 | US4948295 Pipe for watering plants |
| 08/14/1990 | US4948293 Connector apparatus and method for manufacturing an irrigation apparatus |
| 08/14/1990 | US4948041 Thermostatic garden hose protection device |
| 08/01/1990 | CN2059857U Cart type air-pressure sprayer |
| 07/31/1990 | US4944476 Ground stake for retaining irrigation conduit |
| 07/26/1990 | WO1989011787A3 Control valves and method of plant growing using flow control |
| 07/25/1990 | EP0259323B1 Hose for the irrigation of plants |
| 07/24/1990 | US4943917 Irrigation controller having multiple cancel modes invoked by depressing single key |
| 07/18/1990 | EP0378335A1 Tube having holes and method for manufacturing the same |
| 07/18/1990 | CN1043902A Tube having holes and method for manufacturing the same |
| 07/12/1990 | WO1990007267A1 A system for drip irrigation and a drip nozzle |
| 07/04/1990 | CN2058936U Solar energy water pump |
| 07/03/1990 | US4938248 Moisture and pressure sensitive fluid control circuit |
| 06/27/1990 | EP0375615A2 Method of treating water containing fertilisers |
| 06/26/1990 | US4937746 Irrigation controller including means to identify parameter value groups to be displayed |