Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374111 | Extraction undercut for flanged bits | Wayne H. Beach | 1994-12-20 |
| 5018793 | Rotationally and axially movable bit | — | 1991-05-28 |
| 5005622 | Block and locking mechanism for a stump grinding cutter bit and method of securing and retaining | Wayner H. Beach, Don C. Rowlett | 1991-04-09 |
| 4775189 | Bushing plate cutter | — | 1988-10-04 |
| 4684176 | Cutter bit device | Cletis P. Pinkerton | 1987-08-04 |
| 4575156 | Mining block and bit | David L. Hunter, Sr. | 1986-03-11 |
| 4201421 | Mining machine bit and mounting thereof | James O'Connell | 1980-05-06 |