Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8590086 | Wear resisting span lock system | — | 2013-11-26 |
| 7020924 | Static stabilizers for bridges | — | 2006-04-04 |
| 6588041 | Pre-load adjustment for span lock system | James F. Alison, III | 2003-07-08 |
| 5327605 | Energy-absorbing span lock system for drawbridges | — | 1994-07-12 |