| Patents for E01B 3 - Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails (1,703) |
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| 12/30/1992 | CN2126248U Repeatedly-use sleeper |
| 12/15/1992 | US5170937 Concrete railroad stringer or tie |
| 12/02/1992 | EP0516612A1 Ballastless superstructure for railway |
| 11/24/1992 | US5165599 Rail-tie fastening systems |
| 11/19/1992 | DE4116306A1 Securing rail to two parallel cross-sleepers - using pre-mounted fitting watch will accept various screen size and is electrically insulated |
| 11/03/1992 | US5160084 Method for adhesively bonding a rail-tie fastening assembly to a wooden railway tie |
| 10/28/1992 | CN2120133U Tower crane fabricated foundation members |
| 09/29/1992 | US5150835 Rail support adjusting and fastening device |
| 08/19/1992 | EP0499598A1 Railway sleeper and process for its production |
| 08/04/1992 | US5135164 Prestressed concrete railroad tie |
| 07/29/1992 | EP0400081B1 Rail-tie fastening assembly |
| 07/22/1992 | EP0495268A1 Permanent way and concrete sleeper |
| 07/08/1992 | CN2109406U Prestressed concrete bridge pillow on steel beam |
| 06/24/1992 | CN1017171B Hydraulic sleeper rectifier with strut |
| 06/04/1992 | DE4037846A1 Permanent way for rail-mounted vehicles - comprises prestressed concrete sleepers laid on suitable sub base and equipped with usual fittings |
| 05/27/1992 | DE4133905A1 Laminated prestressed concrete railway sleepers - resting on enclosing U=section styro-porous concrete carrier and roadways part, for high-speed travel |
| 05/20/1992 | EP0486465A1 Sleeper in synthetic material |
| 04/14/1992 | US5104039 Railroad tie |
| 04/01/1992 | CN2100414U Equal thick section metric sleeper of steel |
| 03/31/1992 | US5100601 Process for pressing a flexurally rigid, beam-shaped molding |
| 03/19/1992 | WO1992004503A1 Foundation for railway track |
| 03/05/1992 | DE4027836A1 Unterbau fuer ein gleis fuer schienenfahrzeuge Substructure for a track for rail vehicles |
| 01/22/1992 | CN2093857U Guard rail mountable prestressed concrete bridge sleeper |
| 01/08/1992 | EP0465390A1 Railway track |
| 01/07/1992 | US5078319 Rail-tie fastening systems |
| 12/12/1991 | WO1991019045A1 A rapid attachment clamp for a railway track and sleeper provided with such a clamp |
| 10/10/1991 | DE4111088A1 Railway track top structure - comprises ballast bed with transversal sleepers of stressed concrete having thinner central area for rail location |
| 10/10/1991 | DE4017840A1 Prefabricated support for railway tracks - comprises chest formed of plates with core of mortar mixed with finely milled, recycled hard plastic or elastic |
| 09/26/1991 | DE4008747A1 Concrete trough with raised ribs - supports railway lines and is completely lined and sealed with stainless steel and has capacity to equal tanker load |
| 09/18/1991 | EP0334862B1 Cast iron sleeper with built-in rail anchors |
| 09/18/1991 | CN1013975B Cast iron sleeper with built in anchorages (hooks) for rail track |
| 09/12/1991 | DE4007710A1 Railway track-laying system in tunnel - forms floor with same transverse inclination as track |
| 08/27/1991 | US5042717 Strap for the quick fastening of a railroad rail and tie equipped with such a strap |
| 08/21/1991 | CN2083158U Mechanical rail sleeper adjuster |
| 08/07/1991 | EP0440597A1 Superstructure and substructure of railway bed for rail vehicles |
| 08/07/1991 | CN1053651A Hydraulic sleeper rectifier with strut |
| 05/07/1991 | CA1283818C Resilient coat for tie of direct-connection type track |
| 02/12/1991 | CA1280102C Components for ballast-less railroad lines laid on pre-fabricated reinforced concrete slabs |
| 02/06/1991 | EP0412022A1 Railway sleeper |
| 01/10/1991 | DE3922011A1 Quick repairs for heavy duty rail track - by lifting rails, removing unsound concrete, grouting vertical bolts for bearers, repositioning rails and filling space with resin cement |
| 12/12/1990 | CN2067291U Mine magnesite concrete sleeper |
| 11/28/1990 | EP0399373A1 Method and device for the pressing of a flexural rigid girderlike shaped body of vegetable particles |
| 11/23/1990 | CA2017280A1 Process and device for pressing a flexurally rigid beam-shaped molding |
| 11/12/1990 | CA2014562A1 Abrasion resistant rail seat |
| 11/07/1990 | CN2065201U Hydraulic sleeper direction correcting unit with supporting device |
| 11/07/1990 | CN2065200U Wide prestressed-concrete bridge sleeper |
| 09/19/1990 | CN2062346U Rack type sleeper adjuster |
| 08/14/1990 | US4947756 Laying railway track |
| 07/25/1990 | CN1044140A Strap for the quick fastening of a railroad rail and tie equipped with such a strap |
| 07/18/1990 | EP0377765A1 Concrete sleeper adaptable to two track gauges |
| 06/27/1990 | EP0374442A2 Concrete sleeper with a rail fastener |
| 06/13/1990 | EP0373099A1 Rapid rail-fastening device and sleeper provided with such a device |
| 05/15/1990 | US4925094 Concrete railroad ties |
| 04/18/1990 | EP0363591A1 Elastic rail fastening |
| 04/04/1990 | EP0361227A2 Prestressed concrete railway sleeper |
| 03/29/1990 | DE3832505A1 Railway sleeper made of prestressed concrete (keyword: jointed sleeper) |
| 03/22/1990 | DE3829659A1 Method for coupling prestressed-concrete sleepers and means for carrying out the method |
| 02/06/1990 | CA1265491A1 Metallic railway sleepers with corrugated ends |
| 12/21/1989 | DE3820390A1 Method for producing a superstructure for railways |
| 11/02/1989 | WO1989010450A1 An arrangement for use in the fastening of rails to steel railroad sleepers |
| 10/17/1989 | US4874128 Rail-tie fastening assembly |
| 10/04/1989 | EP0334862A1 Cast iron sleeper with built-in rail anchors. |
| 09/21/1989 | DE3828440C1 Sleeper made of flanged steel girders |
| 09/07/1989 | DE3809466A1 Superstructure for railways |
| 08/24/1989 | DE3838105A1 Facility for adhesively bonding a track skeleton formed from sleepers and rails on a concrete track substructure |
| 08/10/1989 | WO1989005377A3 Rail-tie fastening assembly |
| 06/15/1989 | WO1989005377A2 Rail-tie fastening assembly |
| 06/15/1989 | DE3839998A1 Track installation |
| 05/11/1989 | DE3735220A1 Method for the retrospective production, locally unrestricted in a defined region, of an anchoring for rail- fastening screws in the set concrete of the precast sleeper body of a prestressed-concrete sleeper - chiefly a points sleeper - and an anchoring device for the rail-fastening screws for carrying out the method |
| 05/02/1989 | CA1253471A1 Rail pad |
| 03/16/1989 | DE3728304A1 Railway sleeper |
| 03/14/1989 | US4812113 Mold assembly for pre-stressed concrete railroad ties |
| 02/07/1989 | US4802623 Concrete cross sleeper system |
| 01/25/1989 | CN2031414U Hydraulic sleeper squarer |
| 01/18/1989 | CN1030455A Insulated rail gauge bar |
| 01/11/1989 | EP0298904A1 Arrangement for securing the position of steel sleepers |
| 12/07/1988 | EP0293781A1 Plate for the anchorage and tensioning of metal reinforcements in the construction of prestressed reinforced concrete railway sleepers |
| 11/01/1988 | US4781875 Manufacture of pre-stressed concrete railroad ties |
| 09/27/1988 | US4773840 Manufacture of pre-stressed concrete railroad ties |
| 08/31/1988 | CN87205441U Hgdraulic squaring apparatus for sleeper |
| 08/11/1988 | DE3802676A1 Railway superstructure |
| 08/03/1988 | EP0277090A2 Railroad superstructure |
| 06/15/1988 | CN87107900A Cast iron sleeper with built in anchorages (hooks) for rail track |
| 06/07/1988 | CA1237705A1 Manufacture of concrete rail ties, and devices used for said process |
| 06/02/1988 | WO1988003973A1 Cast iron sleeper with built-in rail anchors |
| 06/01/1988 | CN87101437A Hydralic square-positioning apparatus for rail-tie laying |
| 05/25/1988 | CN87203237U Hydrostatic square pillow |
| 05/10/1988 | CA1236439A1 Concrete railroad tie structure |
| 04/12/1988 | US4737333 Method for manufacturing concrete railway sleepers |
| 03/01/1988 | US4728030 Railway sleeper with spade-like end contours |
| 12/16/1987 | EP0249574A2 Concrete sleeper system |
| 12/15/1987 | US4712735 Prestressed concrete cross tie having increased fatigue life |
| 12/02/1987 | CN87102644A Railway sleeper |
| 11/03/1987 | US4703890 Components for ballast-less railroad lines laid on pre-fabricated reinforced concrete slabs |
| 07/30/1987 | DE3601917A1 Process for the purification of flue gases |
| 04/07/1987 | CA1220180A1 Fixing bolt for fixing a rail to a tie |
| 03/24/1987 | US4652495 Resilient coat for tie of direct-connection type track |
| 03/24/1987 | US4651924 Twisted angle tie-bar for railway tie |
| 01/06/1987 | US4634049 Concrete crosstie with recesses and method for the production thereof |
| 12/31/1986 | CN85201943U Sleeper with rail clip apparatus |