|
| US4265398 | 9 Nov 1979 | 5 May 1981 | True Temper Corporation | Variable thickness mat for stress transition zones of railroad track crossings, switches, and the like, and method of use |
| US4296884 | 23 Jan 1979 | 27 Oct 1981 | True Temper Corporation | Containment reservoir and method |
| US4303199 | 20 Aug 1979 | 1 Dec 1981 | | Restored vibration isolation for railway tracks |
| US4311273 | 28 Mar 1980 | 19 Jan 1982 | True Temper Corporation | Variable thickness fabric mat for railway track structure and method |
| US4366846 | 6 Aug 1981 | 4 Jan 1983 | True Temper Corporation | Method for collecting and storing liquid from along a railroad track section |
| US4368844 | 6 Oct 1981 | 18 Jan 1983 | E. I. Du Pont de Nemours and Company | Railroad support fabric |
| US4397899 | 3 Oct 1980 | 9 Aug 1983 | True Temper Corporation | Variable thickness mat for use at the stress transition zone juncture of a bridge-roadway or the juncture of a railroad crossing-roadway |
| US4406403 | 15 Jun 1981 | 27 Sep 1983 | True Temper Corporation | Method of providing a containment reservoir |
| US4500037 | 28 May 1982 | 19 Feb 1985 | Clouth Gummiwerke Aktiengesellschaft | Railway road bed |
| US4720043 | 21 Feb 1986 | 19 Jan 1988 | Clouth Gummiwerke Aktiengesellschaft | Resilient ballast underlayment mat including nonwoven fiber fleece layers |
| US5064313 | 20 Sep 1990 | 12 Nov 1991 | Rothbury Investments Limited | Embankment reinforcing structures |
| US5863147 | 14 May 1996 | 26 Jan 1999 | David E. Pressler
Stephen J. Schneider | Pavement for conveying vehicular traffic |
| US6055693 | 28 Dec 1995 | 2 May 2000 | Owen Industries, Inc. | Railway short span trestle bridge |
| US7004673 | 1 Mar 2004 | 28 Feb 2006 | | Asphalt concrete pavement with concrete subbase with the enriched quarry limestone waste as a coarse aggregate |
| US7278588 | 8 Nov 2004 | 9 Oct 2007 | Northwest Rubber Extruders, Inc. | Elastomeric railway tie pad |
