Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5011229 | Miner cutting bit holding apparatus | Michael L. O'Neill, Stephen P. Moore | 1991-04-30 |
| 4915455 | Miner cutting bit holding apparatus | Michael L. O'Neill, Stephen P. Moore | 1990-04-10 |
| 4607891 | Rotary retainer for mining bits | Wayne L. Edmondson, Michael L. O'Neill | 1986-08-26 |