Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7708232 | Railroad car lateral instability and tracking error detector | Stephen N. Handal, Robert W. Martin | 2010-05-04 |
| 7328871 | Railroad car coupler gap analyzer | Robert W. Martin, Stephen N. Handal | 2008-02-12 |