Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6796698 | Light emitting diode-based signal light | Mathew Sommers | 2004-09-28 |
| 6731222 | Sun phantom LED traffic signal | — | 2004-05-04 |
| 6717526 | Light degradation sensing LED signal with light pipe collector | Jean-Simon Bourgault, Eden Dubuc | 2004-04-06 |