Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8362923 | Traffic signal devices and methods of using the same | Edward Witte | 2013-01-29 |
| 7586421 | Traffic signal devices and methods of using the same | Edward Witte | 2009-09-08 |