Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6345233 | Collision avoidance using GPS device and train proximity detector | — | 2002-02-05 |
| 6025789 | Train proximity detector | Brent Lane | 2000-02-15 |
| 5739768 | Train proximity detector | Brent Lane | 1998-04-14 |