| Patents for E01B 21 - Track superstructure specially adapted for tramways in paved streets (432) |
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| 02/08/1996 | DE4427237A1 Unterbau für ein Gleis für Schienenfahrzeuge Infrastructure for a railway for rail vehicles |
| 11/14/1995 | US5465903 Mounting plate for fixing elastomeric grade crossing panels to ties |
| 11/07/1995 | US5464152 Method and apparatus for electrically isolating a rail in a precast concrete grade crossing |
| 07/13/1995 | WO1995018887A1 Method and apparatus for electrically isolating a rail in a precast concrete grade crossing |
| 03/29/1995 | EP0489100B1 Rail |
| 02/02/1995 | DE4325476A1 Method for producing a substructure for a track for rail vehicles |
| 10/19/1994 | EP0620316A1 Elastic rail pads for open or closed superstructure |
| 10/06/1994 | DE4411833A1 Noise-damped tramway track |
| 05/26/1994 | DE4311452C1 Elastic rail arrangement with open or closed upper structure for rail vehicles - entails support profiles made of angle plate for rails located on support bodies and fixed by clamp plates |
| 02/15/1994 | US5285964 Method for constructing a railroad in concrete having vertical and lateral adjustment steps prior to concrete pouring |
| 01/20/1994 | DE4223270A1 Sound-absorbent elastic setting for rail for tracked vehicles - has electrically insulating elastic material fitted into sides and beneath rail and bonded on with e.g. polyurethane to provide seals |
| 12/29/1993 | EP0576392A1 Method for the construction of a track in concrete |
| 11/23/1993 | CA2096456A1 Method for constructing a railroad in concrete |
| 08/04/1993 | CA2084269A1 Mounting plate for fixing elastomeric grade crossing panels to ties |
| 04/15/1993 | DE4133906A1 Combining rail and road public transport in cities - by use of prestressed concrete track with inlaid rails for common use |
| 04/13/1993 | US5201467 Apparatus for interconnecting elastomeric grade crossing panels |
| 06/10/1992 | EP0489100A1 Rail. |
| 04/28/1992 | US5109039 Material for the installation of rails |
| 09/18/1991 | CN1054630A Improvements in and relating to tram track |
| 08/07/1991 | EP0440159A1 Sealing device for track gap |
| 07/25/1991 | WO1991010778A1 Improvements in and relating to tram track |
| 05/29/1991 | DE3939215A1 Reduction of noise of railway traffic - involves two=part longitudinal element of polyurethane and lead fixed to the sides of the rails |
| 03/07/1991 | WO1991002843A1 Rail |
| 06/27/1990 | EP0374325A1 Embedded track assembly |
| 03/29/1989 | EP0308876A1 Resilient supporting device for grooved rails |
| 12/27/1988 | US4793545 For a transit railway |
| 04/07/1988 | DE3626490A1 Device for the casting-in of rails |
| 09/24/1987 | DE3608344A1 Track construction for rail vehicles, in particular tramways |
| 05/06/1987 | CN86204286U Installation for construction over railway |
| 05/09/1986 | WO1986002678A1 Material for the installation of rails |
| 05/07/1986 | EP0180118A1 Material for the mounting of rails |
| 07/08/1980 | CA1081192A1 Liquid collection system for railroad roadbeds |