Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11136887 | Mine roof support, pre-installation assembly for same, and method of installation | — | 2021-10-05 |
| 10822948 | Mine roof support, pre-installation assembly for same, and method of installation | Nicholas J. Tennant | 2020-11-03 |
| 6889865 | Method and apparatus for pressure testing storage tanks | John Burwell, Chester Batzkiel, Greg Carty, Onesimo Gomez, David Lehman +2 more | 2005-05-10 |