Patents for E02B 5 - Artificial water canals (1,492) |
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09/01/1999 | EP0688236B1 An apparatus for the separation of solids from flowing liquid |
08/31/1999 | CA2009660C Lock using air chambers |
08/26/1999 | WO1999042668A1 Separating grid |
08/17/1999 | US5937849 Covered canal or aqueduct having an integral solar energy concentrating system |
07/29/1999 | DE19802979A1 Guard grids at the water inflow to power station turbines |
07/20/1999 | US5925754 Epsilon caprolactam compositions |
07/13/1999 | US5922195 Water filtration |
06/02/1999 | CN1218526A Revetement for bank |
05/11/1999 | CA2219544C Water filtration system for control of the zebra mussel |
04/28/1999 | EP0910707A1 Stepped filtration device for mechanically separating solids from liquids |
04/21/1999 | EP0805939A4 A roof having an integral solar energy concentrating system |
04/14/1999 | EP0908214A2 Trash rack with non-metallic reinforcing rods |
04/06/1999 | CA2108253C Screening rake |
03/16/1999 | US5882145 Method for controlling expansion and contraction of trench liners |
03/11/1999 | WO1999011878A1 Pollutant interceptor |
03/09/1999 | US5879106 Method and apparatus for controlling expansion and contraction of trench lines having lateral extensions |
03/03/1999 | EP0898624A1 Revetement for a bank |
02/25/1999 | WO1999009297A1 Process for constructing intake pipe |
02/24/1999 | CN2308634Y Microgrille solid/liquid separating machine |
01/31/1999 | CA2241047A1 Portable water conveyance assembly |
01/13/1999 | EP0890708A1 Method, system and device for building a wall in the ground |
01/13/1999 | EP0890707A1 Method, system and device for building a wall in the ground |
01/12/1999 | US5858235 Sludge dehydrating press having cylindrical inner screen case |
12/10/1998 | WO1998055699A1 Screen cleansing apparatus |
11/25/1998 | EP0879144A1 Structure forming method and apparatus |
11/25/1998 | CN1200159A Concrete product for afforestation |
11/12/1998 | WO1998050638A1 Stepped filtration device for mechanically separating solids from liquids |
11/12/1998 | DE19719371A1 Vorrichtung zur maschinellen Feststoffseparation aus Flüssigkeiten Apparatus for mechanically separating solids from liquids |
10/22/1998 | WO1998046564A1 Epsilon caprolactam compositions and byproducts |
10/22/1998 | DE19714566A1 Water inlet rack for hydro-electric power station |
10/22/1998 | CA2286071A1 Epsilon caprolactam compositions and byproducts |
09/22/1998 | US5810513 Method and apparatus for preventing trench overflows behind trench liners |
09/15/1998 | US5806252 Waterproofing system for hydraulic structures with rigid sheets in synthetic material |
09/08/1998 | US5803662 For installing a channel capable of receiving runoff from athletic surfaces |
09/02/1998 | CN2289828Y Dirt removing machine for dirt screen |
09/01/1998 | US5800077 Method and apparatus for monitoring a hydroelectric facility trash rack |
08/18/1998 | US5795467 Adjustable inlet for waste water treatment apparatus |
08/05/1998 | CN1189559A Tech. for clearing reservoir sedimentation by pipeline delivery and digging bar |
06/23/1998 | US5770055 Strainer for removing particles from effluent |
04/22/1998 | CN1179808A Roof having integral solar energy concentrating system |
03/10/1998 | US5725716 Structure forming method and apparatus |
01/22/1998 | WO1998002624A1 Method and apparatus for controlling expansion and contraction of trench liners |
12/23/1997 | US5700345 Continuous structure forming apparatus |
11/20/1997 | WO1997043487A1 Revetment for a bank |
11/13/1997 | DE19718414A1 Method of lining ship canal |
11/12/1997 | EP0805939A2 A roof having an integral solar energy concentrating system |
08/20/1997 | CN1157357A Device for cyclic utilization of lock chamber water |
08/05/1997 | US5653553 Drainage channel and associated method |
07/23/1997 | EP0682551B1 Strainer for removing particles from effluent |
07/01/1997 | US5643458 Sludge dehydrating press and method for treating sludge |
07/01/1997 | US5642963 Spillway gate system |
06/24/1997 | US5641249 Aggregate extruder |
06/17/1997 | US5639331 Method for continuously forming structure from resin, particles, and porous blanket |
06/12/1997 | WO1997020991A1 Drainage channel and associated method |
05/28/1997 | EP0775781A1 Waterproofing system for hydraulic structures with rigid sheets in synthetic material |
04/23/1997 | CN1148121A Water flow guiding method for narrow river bed |
04/02/1997 | CN2250977Y Eddy preventing and eliminating screen |
03/20/1997 | WO1997010389A1 Filter |
02/13/1997 | WO1997005338A1 Separator |
12/04/1996 | EP0745728A1 Lock gate |
11/07/1996 | WO1996034743A1 Structure forming method and apparatus |
10/22/1996 | US5567079 Method for the hydraulic branching of an open stream and hydraulically working channel branch |
10/15/1996 | US5564410 Roof having an integral solar energy concentrating system |
09/26/1996 | WO1996024012A3 A roof having an integral solar energy concentrating system |
08/08/1996 | WO1996024012A2 A roof having an integral solar energy concentrating system |
08/08/1996 | CA2211881A1 A roof having an integral solar energy concentrating system |
08/06/1996 | US5543006 Continuous structure forming method |
07/24/1996 | EP0673456B1 Process for hydraulically branching an open stream and canal branch with hydraulic operation |
07/17/1996 | CN1126787A Liquid-repellant covering layer and method for the manufacture of such covering layer |
07/17/1996 | CA2140317A1 Beaver dam culvert block |
05/22/1996 | EP0688236A4 An apparatus for the separation of solids from flowing liquid |
04/17/1996 | CN1120817A An apparatus for the separation of solids from flowing liquid |
03/05/1996 | US5496434 Structure forming apparatus |
02/22/1996 | DE19528725A1 Verfahren zur Oberflächendichtung für Erdbaukörper im Wasserbau A method for surface sealing for Erdbaukörper in hydraulic |
02/01/1996 | DE19525883A1 Device for applying sealing or reinforcing clay layers to river or canal bed |
12/27/1995 | EP0688904A1 Lock gate |
12/27/1995 | EP0688236A1 An apparatus for the separation of solids from flowing liquid |
11/29/1995 | CN1112523A Sludge dehydrating press and method for treating sludge |
11/22/1995 | EP0682551A1 Strainer for removing particles from effluent. |
11/16/1995 | WO1995030543A1 Structure forming method, apparatus and the product |
11/16/1995 | WO1995030542A1 Structure forming method, apparatus and the resulting product |
11/16/1995 | WO1995030541A1 Structure forming method, apparatus and resulting product |
11/15/1995 | EP0581770B1 Screening rake |
11/08/1995 | CN1111317A Coiled well screen |
09/27/1995 | EP0674095A2 Well screen with coiled element |
09/27/1995 | EP0673456A1 Process for hydraulically branching an open stream and canal branch with hydraulic operation. |
07/26/1995 | CN1105727A Passway capable of making decentralized drift wood automatically flow over dam |
07/19/1995 | EP0663227A1 Sludge dehydrating press and method for treating sludge |
06/14/1995 | CN1103691A Branching system for flow of water in open channel |
06/06/1995 | US5422000 Device for cleaning large quantities of water from rakings |
06/01/1995 | DE19501953A1 Barring=off equipment for water turbine intake grille |
03/22/1995 | CN2192654Y Automatic cleaning filter |
03/22/1995 | CN2192653Y Assembly irrigation ditch steep slope |
02/28/1995 | US5393171 Trench forming assembly and method |
02/22/1995 | CN1099082A Method for dredging river for water transport, navigation and making land |
02/07/1995 | US5387336 Screening rake |
11/02/1994 | EP0386209B1 Self-propelled machine for the concreting of ditches |
10/27/1994 | WO1994024373A1 Strainer for removing particles from effluent |
09/21/1994 | CN1025966C Slope drain canal construction method for non-stable geology area |
09/20/1994 | US5348421 Trench forming assembly and method |