Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11175119 | Method and apparatus for preventing rock fragments from entering or collapsing into a blast hole | — | 2021-11-16 |
| D913079 | Flexible sheet for insertion in a borehole | — | 2021-03-16 |