| Patents for E02D 29 - Underground or underwater structures; Retaining walls (15,197) |
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| 03/16/1994 | CN1083886A Non-closed arch ring retaining structure and its construction method |
| 03/10/1994 | DE4230006A1 Adjustment of height of manhole cover in roadway - involves frame member with socket portions accommodating square-headed threaded spindles in threaded bores |
| 03/09/1994 | EP0585959A1 Method for realising an entrenched conduit |
| 03/09/1994 | EP0585608A1 Manholecover comprising a row of covers |
| 03/09/1994 | CN1083558A Cover for manhole |
| 03/08/1994 | US5292206 Device for sealing a caisson in a watertight way |
| 03/08/1994 | US5291704 Modular construction joist made up of a high-strength plastic material, particularly suitable for realizing grids, and closure members subjected to pedestrian and vehicle traffic |
| 03/02/1994 | EP0584165A1 A foundation for a building structure. |
| 03/02/1994 | CN2157946Y Anti-theft device for cover of manhole |
| 03/02/1994 | CN1083167A 拱形结构 Arch |
| 03/02/1994 | CN1083166A 拱形结构 Arch |
| 03/02/1994 | CN1083153A Drainage grate (sewer cover) made of new material and making technique thereof |
| 03/01/1994 | US5290006 Expanding form for pouring mixed cement to reposition manhole castings |
| 02/23/1994 | EP0584053A1 Wall and method of manufacture |
| 02/23/1994 | CN2157227Y Self-locking manhole cover device |
| 02/23/1994 | CN2157226Y Rotary manhole cover device |
| 02/23/1994 | CN2157225Y Theftproof noise elimination manhole cover |
| 02/23/1994 | CN1082651A Self-locking manhole lid device |
| 02/22/1994 | USRE34550 Sturdy adjustable manhole cover support |
| 02/16/1994 | CN2156215Y Coding well cover |
| 02/16/1994 | CN2156214Y Trapezium shock-damping rubber ring (strip) |
| 02/08/1994 | US5283994 To serve as a retaining wall for particulate material |
| 02/08/1994 | CA2075580A1 Block for a retaining wall structure |
| 02/03/1994 | WO1994002688A1 Manhole head assembly, manhole top ring having an adjustable upper part and method of use or said manhole top ring |
| 02/03/1994 | DE4319433A1 Field gap seal for pipelines in concrete jacket - involves plastics strips, surrounding pipeline, wound in gap. |
| 02/02/1994 | EP0580993A1 Manhole cover for inspection shafts |
| 02/02/1994 | CN1081487A Self-lock type device for well cover |
| 02/01/1994 | US5282700 Block interlock offsetting key for use in the construction of a retaining wall |
| 02/01/1994 | US5282339 Aircraft servicing pit with retractable ladder |
| 01/25/1994 | US5281046 Transition collar |
| 01/20/1994 | WO1994001625A1 Drive-in type concrete form for underground wall |
| 01/20/1994 | CA2118581A1 Permanent form for placing basement concrete wall |
| 01/19/1994 | CN2153580Y Theft-proof device for cover of manhole shaft |
| 01/18/1994 | US5279083 Modular frame for defining and profiling the edges of wells, canalizations for openings in general |
| 01/13/1994 | DE4221698A1 Mfg. concrete or part-concrete shaft components - smooths contact surface by vertical rotation over respective form face or wiping edge |
| 01/12/1994 | EP0578044A1 Component for control- or maintenance-manholes |
| 01/11/1994 | US5277520 Grid composite for backfill barriers and waste applications |
| 01/11/1994 | US5277012 Retaining wall building block |
| 01/11/1994 | CA1326051C Cable manhole or box culvert with peripheral gaskets |
| 01/05/1994 | EP0576939A1 Plastic multiple use building element |
| 12/29/1993 | EP0575735A1 Building element for supporting grid walls with a bulk material filling |
| 12/29/1993 | EP0575457A1 Injection tube for chemical injection in concrete |
| 12/29/1993 | CN2151177Y Manhole cover for preventing steal |
| 12/29/1993 | CN2151176Y Threaded cover for preventing steal |
| 12/21/1993 | US5271193 Concrete products and methods of fabrication |
| 12/16/1993 | DE4219078A1 Erecting building standing in ground-water - using vertical posts with projecting heads in water-filled pit, shuttering, and hydraulic device to construct and lower foundation unit |
| 12/15/1993 | EP0574233A1 Method for forming vegetated slopes in strengthened ground and a product obtained by such method |
| 12/15/1993 | CN2149423Y Safety protection cover for underground well |
| 12/14/1993 | US5270489 Utility pull box |
| 12/13/1993 | CA2071187A1 Gripping device for retaining a ring member supporting a manhole cover |
| 12/08/1993 | EP0572908A1 Manholecover |
| 12/08/1993 | CN2148781Y Anti-theft device for municipal water supply and drainage well cover |
| 12/08/1993 | CN2148780Y Anti-theft apparatus for cover of well |
| 12/08/1993 | CN2148779Y Anti-theft manhole cover |
| 12/02/1993 | DE4217844A1 Spiral staircase in underground chamber - has cover on telescopic extending portion of central column above topmost step |
| 12/01/1993 | CN2148097Y Theft-proof cast iron manhole cover |
| 11/30/1993 | US5265981 System and method for rehabilitating a manhole, and manhole rehabilitated thereby |
| 11/30/1993 | US5265974 Safety net assembly net and system |
| 11/25/1993 | DE4216635A1 Cement stone for ornamental garden wall - comprises two parts attached by step and each part having six corners and opposite facing sides of equal or different lengths |
| 11/24/1993 | EP0570663A1 Manhole cover |
| 11/24/1993 | CN2147267Y Man hole cover with washer on road |
| 11/23/1993 | US5263298 Procedure for making in-situ manholes for underground electric and telephone lines ductwork |
| 11/18/1993 | DE4214915A1 Structure of prefab. retaining wall - consists of foot sections, wall elements partially of natural stone, crown elements, and anchor bars |
| 11/17/1993 | CN2146514Y Theft-proof cover for sewer manholes |
| 11/17/1993 | CN1078518A Method for supporting deep-foundation side wall by use of channel-section steel and anchor bar concrete pile |
| 11/16/1993 | US5261766 Vertical bore hole system and method for waste storage and energy recovery |
| 11/16/1993 | CA1324266C Concrete slabs for construction of retaining walls |
| 11/11/1993 | WO1993022506A1 Arrangement in a supporting wall, especially used as a sound wall |
| 11/11/1993 | DE4214410A1 Widening of existing trench - involves machine with several cutting heads on swing arms |
| 11/10/1993 | EP0569323A2 Retaining building block and wall-block |
| 11/10/1993 | EP0568799A1 Shuttering for a joint |
| 11/09/1993 | US5259704 Mechanically stabilized earth system and method of making same |
| 11/09/1993 | CA1324175C Locking device for coverings for manholes and other ground openings |
| 11/03/1993 | EP0568051A1 Building system for a retaining wall comprising a vegetation sustaining building element |
| 11/02/1993 | US5257880 Retaining wall construction and blocks therefor |
| 10/28/1993 | DE4312267A1 Segmented shaft for e.g. waste dump - has joints held open by repeated segment raising by hydraulic jacks, lifting cushions or spindles |
| 10/27/1993 | EP0433410B1 Manhole cover |
| 10/23/1993 | WO1993021394A1 Geocell with facing panel |
| 10/23/1993 | CA2134203A1 Geocell with facing panel |
| 10/20/1993 | CN1077510A Self supporting type double row anti-floating pile wall |
| 10/19/1993 | US5253959 Methods of construction and implements therefor |
| 10/19/1993 | US5253952 Stabilizer for underground valve housing |
| 10/14/1993 | WO1993020291A1 A manhole cover |
| 10/13/1993 | CN2143635Y Anti-theft cover for manhole |
| 10/12/1993 | US5252017 Setback retaining wall and concrete block and offset pin therefor |
| 10/12/1993 | CA1322863C Joining of a concrete element to a support |
| 10/06/1993 | CN2143240Y Drain cover |
| 10/05/1993 | US5249401 Sealing device for concrete joints and process for the introducing of a sealing medium into sealing devices |
| 10/05/1993 | CA1322663C Facing system |
| 09/30/1993 | WO1993019258A1 Manholes and inspection chambers |
| 09/30/1993 | WO1993019257A1 Prefabricated channel element for drain catch basins |
| 09/30/1993 | WO1993019251A1 Transition collar |
| 09/30/1993 | WO1993019250A1 Grid composite for backfill barriers and waste applications |
| 09/30/1993 | DE4309128A1 Colourant providing realistic, aesthetic finish to concrete - consists of mixt. of polyethylene oxide and pigment or dye applied to substrate, used to transfer colourant to concrete by penetration |
| 09/30/1993 | CA2135901A1 Transition collar |
| 09/30/1993 | CA2132734A1 Grid composite for backfill barriers and waste applications |
| 09/29/1993 | CN2142855Y Anti-theft cover of manhole |
| 09/28/1993 | US5248226 Connector for use in combination with blocks for wall structures or the like |
| 09/28/1993 | CA2064371A1 Manhole cover lock with spring biased locking bars |
| 09/23/1993 | DE4307396A1 Method of lining of shaft with concrete sections - has sections cast in-situ in circular forms which are re-used as lower sections harden and are driven down |