Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7274302 | Light emitting diode traffic control device | Bob Stevenson, Paul Calixto, Henry Lee, Edson Calixto, Jorge Santana | 2007-09-25 |
| 7014355 | Electronic parking meter system | Thomas Potter | 2006-03-21 |
| 4723868 | Apparatus for installing circular traffic loops | — | 1988-02-09 |