Issued Patents 2022
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11261062 | Modular sheave unit | Jun Ma | 2022-03-01 |
| 11254544 | Friction liner and traction sheave | James L. Hubbard, Peter Keyo | 2022-02-22 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11261062 | Modular sheave unit | Jun Ma | 2022-03-01 |
| 11254544 | Friction liner and traction sheave | James L. Hubbard, Peter Keyo | 2022-02-22 |