Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6311441 | Panel-based modular wall system | Joseph Alexander, Doris Shlayn | 2001-11-06 |
| 5597262 | Resilient traffic bollard with rotatable collar | Jerry F. Fischer, Vince DiCola, John D. Boyer | 1997-01-28 |
| 5397197 | Resilient bollard with rotatable collar for alerting vehicles of their location | — | 1995-03-14 |