Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7353093 | Template crossing design and programming for highway-rail grade crossings | Richard Bamfield, Martin Paget | 2008-04-01 |
| 5029780 | Multi-frequency railroad grade crossing termination shunt assembly | — | 1991-07-09 |
| 5022613 | AC and battery backup supply for a railroad crossing gate | — | 1991-06-11 |