Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6270020 | Roadway deicing system | Jeffrey M. Thompson, Barry D. Stephens | 2001-08-07 |
| 5642792 | Highway crash cushion | — | 1997-07-01 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6270020 | Roadway deicing system | Jeffrey M. Thompson, Barry D. Stephens | 2001-08-07 |
| 5642792 | Highway crash cushion | — | 1997-07-01 |