Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10858937 | Adapted rock bolt with improved installation properties | Cornelius Adriaan Nieuwenhuis, James William Sheppard, Henri Visser | 2020-12-08 |
| 10815780 | Resin anchored rock bolt with a piercing end | James William Sheppard | 2020-10-27 |