| Patents for E01F 5 - Draining the sub-base of roads or ballastway of railways by trenches, culverts, or conduits (873) |
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| 09/01/2011 | WO2011103672A1 Gauge and frame for a portable sawmill to make wooden box culvert |
| 08/31/2011 | CN201952789U 塑料盲沟管 Plastic blind ditch pipe |
| 08/31/2011 | CN201952745U 波纹管涵洞单元片立式组装工装 Bellows piece culvert unit vertical assembly tooling |
| 08/25/2011 | US20110206461 Culvert end |
| 08/22/2011 | CA2728989A1 Culvert end |
| 08/17/2011 | CN102154985A Guide shield for pushing rectangular concrete frame bridge |
| 08/17/2011 | CN102154958A Device for automatically collecting and conveying railway fecaluria |
| 08/17/2011 | CN101935988B Box culvert structure and jacking method of box culvert for penetrating roadbed |
| 08/10/2011 | CN201924326U 涵管 Culvert |
| 08/03/2011 | CN201915373U 盲沟管材 Blind ditch pipe |
| 08/03/2011 | CN201915372U 盲沟材 Blind ditch timber |
| 08/03/2011 | CN201915371U 塑料盲沟材 Plastic blind ditch timber |
| 07/27/2011 | CN201908286U Plastic blind ditch pipe for drainage |
| 07/27/2011 | CN201908285U Plastic blind ditch for drainage |
| 07/27/2011 | CN201908284U 盲沟 Blind ditch |
| 07/20/2011 | CN201902014U Template for concrete pouring of various bridges and culverts |
| 07/13/2011 | CN201896293U Box culvert iron jacking member |
| 07/13/2011 | CN101302743B Steel bell and spigot prestress thin wall concrete pipe |
| 07/06/2011 | CN201891088U Semicircular arched culvert pipe and bearing support seat thereof |
| 06/29/2011 | CN201883384U Linear drainage component and linear drainage system |
| 06/23/2011 | US20110150574 Environmental culvert system |
| 06/22/2011 | CN201874083U Land-saving and energy-saving reservoir type pumping station drainage device for down digging channels |
| 06/22/2011 | CN102102344A Method for quickly assembling assembled corrugated culvert |
| 06/15/2011 | CN102094375A Design method for bituminous pavement with drainage function |
| 06/15/2011 | CN101649592B Road drainage system |
| 06/09/2011 | US20110135384 Surface drainage system |
| 05/25/2011 | CN201843090U Novel culvert pipe structure |
| 05/18/2011 | CN201835235U Novel culvert pipe adapting to foundation deformation and connecting element thereof |
| 05/18/2011 | CN201835205U Road capable of filtering and collecting rainwater on road surface |
| 05/04/2011 | CN201817780U Steel bow slope for box culvert jacking |
| 04/28/2011 | US20110097146 Water drainage system |
| 04/21/2011 | US20110091281 Drainage system, apparatus, and method |
| 04/20/2011 | CN201801794U Soilbag back roadbed |
| 03/23/2011 | CN201770925U Highway leaching well |
| 03/10/2011 | WO2011028365A1 Module and assembly for managing the flow of water |
| 03/10/2011 | US20110058897 Woven geosynthetic fabric with differential wicking capability |
| 02/09/2011 | CN201738251U 箱涵 Culvert |
| 02/09/2011 | CN201738250U Arch culvert and arch ring steel die trolley |
| 02/02/2011 | CN101962935A High polymer modified asphalt waterproof coiled material for bridge of railway |
| 01/26/2011 | CN101956373A Method for preventing box culvert head drop during box culvert jacking construction and used steel ship bow slope |
| 01/25/2011 | US7874767 Woven geosynthetic fabric with differential wicking capability |
| 01/13/2011 | WO2011003159A1 Rainwater channel drain |
| 01/13/2011 | US20110005045 Catch basin clamp system |
| 01/05/2011 | EP2268866A2 Drainage system, apparatus, and method |
| 01/05/2011 | CN201695349U Jack fixing and protecting device for box culvert jacking construction |
| 01/05/2011 | CN201695348U Structure for horizontally lifting and reinforcing existing lines |
| 01/05/2011 | CN101935988A Box culvert structure and jacking method of box culvert for penetrating roadbed |
| 12/29/2010 | CN201686940U Pipe ditch type foundation with environment protection function |
| 12/22/2010 | CN201680071U High-strength corrugated culvert pipe |
| 12/14/2010 | CA2516248C A separator |
| 12/01/2010 | CN201660852U Culvert beneficial for animals to pass through |
| 12/01/2010 | CN101429753B Well type heat-insulating water outlet |
| 11/16/2010 | CA2372943C Arched structures and method for the construction of same |
| 10/14/2010 | US20100260550 Beaver be gone |
| 09/21/2010 | US7798747 Stormwater capture module |
| 09/15/2010 | CN101831857A Cement concrete road with drainage scoops |
| 09/09/2010 | US20100226721 Module and Assembly for Managing the Flow of Water |
| 09/08/2010 | EP2225418A1 Method of manually restoring an inner surface of a corrugated steel tube |
| 09/08/2010 | CN1807760B Road drainage system and construction process thereof |
| 08/11/2010 | CN101324057B Subway unballasted track ditch construction method and used formwork |
| 07/28/2010 | CN201534965U 一种耐磨蚀的金属波纹管涵洞 A wear-resistant metal bellows culvert eclipse |
| 06/09/2010 | CN201502111U Fire-proofing sound-insulation panel |
| 06/01/2010 | US7725978 Drainage structure cleaning apparatus |
| 05/26/2010 | CN201485768U Road drainage system |
| 05/12/2010 | CN201459693U Water-permeable pipe |
| 05/12/2010 | CN201459614U Split type steel corrugated culvert pipe |
| 05/11/2010 | CA2530850C Open bottom box culvert |
| 04/21/2010 | CN101270561B Method for resolving surface drainage and communal facilities paving problem of city |
| 04/20/2010 | US7699557 Aquifer replenishment system |
| 04/14/2010 | EP2175071A1 Drainage device and arrangement including such drainage device |
| 04/14/2010 | CN201437581U Reinforced concrete slope-shaped water drainage pipe for highroad |
| 04/06/2010 | US7690857 Storm drain relief channel and associated methods of manufacture and use |
| 03/30/2010 | US7686540 Transport corridor infiltration system |
| 03/16/2010 | US7676963 Snow plow including mold board having back plate |
| 02/17/2010 | EP2154293A2 Road surface construction |
| 01/21/2010 | WO2009146046A3 Drainage system, apparatus, and method |
| 01/14/2010 | US20100008719 Grating |
| 01/06/2010 | CN201377072Y Cement cover plate side-supporting type skewing track device and cement cover plate thereof |
| 12/29/2009 | US7637695 Heavy duty trench frame and grate assembly |
| 12/23/2009 | CN101608422A Drainage system of freeway |
| 12/09/2009 | CN201358425Y Concrete cover plate translational rail device and concrete cover plate thereof |
| 12/09/2009 | CN201358424Y Concrete cover plate brace-rod assisting upturning device and concrete cover plate thereof |
| 12/09/2009 | CN101597888A Construction method of municipal drainage culvert sinking trough |
| 12/03/2009 | WO2009146046A2 Drainage system, apparatus, and method |
| 12/03/2009 | CA2720230A1 Drainage system, apparatus, and method |
| 12/02/2009 | CN100564686C Method for reducing load applied to upper burying type constructional work by using polystyrene foam |
| 11/12/2009 | US20090279953 Modular underground water management systems |
| 10/01/2009 | US20090245936 Woven geosynthetic fabric with differential wicking capability |
| 09/23/2009 | CN101538825A Construction method for preventing water seepage of expansion joint of concrete pavement by adopting water guide blind ditch |
| 08/27/2009 | US20090214297 Reinforcement rib and overhead structure incorporating the same |
| 08/26/2009 | CN100532727C Water-stopping treatment method for steel reinforced concrete pipe culvert |
| 08/22/2009 | CA2654993A1 Reinforcement rib and overhead structure incorporating the same |
| 08/05/2009 | CN201284492Y Simple and practical overhead road rainwater utilization system |
| 07/23/2009 | US20090183321 Flared leg precast concrete bridge system |
| 07/22/2009 | CN101487236A Seepage and drainage geogrid |
| 07/21/2009 | US7562717 Culvert opening and cleaning apparatus |
| 07/14/2009 | US7559720 Culvert bundle for stream crossings and flow-through bridge abutments |
| 07/07/2009 | US7556450 Water collecting structure and drainage structure using the same |
| 06/18/2009 | WO2009075647A1 Method of manually restoring an inner surface of a corrugated steel tube |
| 05/27/2009 | CN201245805Y 高速公路排水系统 Highway drainage system |