Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12281452 | High speed high performance delineator system | Gregory L. Hannah | 2025-04-22 |
| D937700 | Cylindrical load collar for a delineator system | Gregory L. Hannah | 2021-12-07 |
| D932875 | Horizontal bollard adapter | Patrick R. Boyle | 2021-10-12 |
| 11136735 | Impact-resistant and energy-absorbing bollard system | Gregory L. Hannah | 2021-10-05 |
| 4548509 | Mixing disc | Wendell K. Gillis, Bernard C. Baros | 1985-10-22 |