Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8381842 | Apparatus for rotary mining | Allen J. Gourley | 2013-02-26 |
| 7997356 | Apparatus for rotary mining | Allen J. Gourley | 2011-08-16 |
| 7770670 | Apparatus for rotary mining | Allen J. Gourley | 2010-08-10 |
| 6065551 | Method and apparatus for rotary mining | Allen J. Gourley | 2000-05-23 |