Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11131190 | Friction rock bolt | Bradley Darlington, Mietek Rataj | 2021-09-28 |
| 11028692 | Rock bolt with meshing adapter | Mieczyslaw Rataj, Bradley Darlington, Warren Roach | 2021-06-08 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11131190 | Friction rock bolt | Bradley Darlington, Mietek Rataj | 2021-09-28 |
| 11028692 | Rock bolt with meshing adapter | Mieczyslaw Rataj, Bradley Darlington, Warren Roach | 2021-06-08 |