Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6260638 | Rotatable cutting bit assembly with wedge-lock retention assembly | Ted R. Massa, Robert H. Montgomery, Jr., David R. Siddle | 2001-07-17 |
| 6247759 | Cutting tool assembly with replaceable spray nozzle | Robert H. Montgomery, Jr., Jan S. Grieveson, Daniel C. Sheirer | 2001-06-19 |
| 5996714 | Rotatable cutting bit assembly with wedge-lock retention assembly | Ted R. Massa, Robert H. Montgomery, Jr., David R. Siddle | 1999-12-07 |