Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6293473 | Railroad substructure | Elisabeth Ortwein | 2001-09-25 |
| 6079631 | Rail-fastening assembly | David Seeley, Stephen John Cox, Kenneth George Allen, Brian G. Conroy, Martin Somerset +2 more | 2000-06-27 |
| 5788153 | Infrastructure for railway tracks | — | 1998-08-04 |
| 5173012 | Ground-borne noise and vibration damping | Heinz Fischer | 1992-12-22 |
| 5060856 | Sound-damping mat, especially for a ballast bed | — | 1991-10-29 |
| 4775103 | Elastically mounted rails for vehicle tracks | — | 1988-10-04 |
| 4723706 | Rail support | — | 1988-02-09 |
| 4720043 | Resilient ballast underlayment mat including nonwoven fiber fleece layers | — | 1988-01-19 |
| 4696429 | Elastic mat for a ballast bed underlayment | — | 1987-09-29 |
| 4637646 | Wheel set for rail vehicles | Ottmar Krettek, Johannes Nicolin | 1987-01-20 |
| 4577801 | Elastomeric mounting for railway rail with differently angled flanks | — | 1986-03-25 |
| 4527736 | Elastomeric railway-rail mount | — | 1985-07-09 |
| 4500037 | Railway road bed | Hans Braitsch, Josef Vorwald | 1985-02-19 |
| 4266719 | Track mounting assembly and sound-damping system therefore | Hans Braitsch | 1981-05-12 |