Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6179252 | Intelligent rail crossing control system and train tracking system | Stephen S. Roop | 2001-01-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6179252 | Intelligent rail crossing control system and train tracking system | Stephen S. Roop | 2001-01-30 |