Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D338165 | Optical emitter for use in priority traffic control | Perry S. Dotterman | 1993-08-10 |
| 5187373 | Emitter assembly for use in an optical traffic preemption system | — | 1993-02-16 |