Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5211503 | Barrier gate for longitudinal highway barrier | — | 1993-05-18 |
| 5088874 | Highway barrier transporter | — | 1992-02-18 |
| 4869775 | Tab depositing dispenser | — | 1989-09-26 |
| 4624601 | Transferable roadway lane divider | — | 1986-11-25 |
| 4500225 | Transferable roadway lane divider | — | 1985-02-19 |
| 4498803 | Moveable lane barrier locking system | — | 1985-02-12 |