Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4778106 | Stud, arc shield and rail clip for securing railroad rails | Leslie J. Diener, George P. Dunn, Albert E. Rex | 1988-10-18 |
| 4629118 | Rail insulating pad assembly | — | 1986-12-16 |
| 4424935 | Spring rail fastener | Leslie J. Diener, Jack Clark | 1984-01-10 |
| 4417690 | Steel railroad sleeper | — | 1983-11-29 |