Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5738466 | Ribbed flexible member for casting into an anchorage medium | John M. Walton | 1998-04-14 |
| 5622454 | Anchor bolt for stabilizing rock strata and method of installing | John M. Walton | 1997-04-22 |
| 5458442 | Flexible roof bolt | — | 1995-10-17 |