Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10822202 | Unitized segmented sheave assembly | Austin Lee, Jun Ma | 2020-11-03 |
| 10766746 | Friction liner and traction sheave | James L. Hubbard, Peter Keyo | 2020-09-08 |
| 10647547 | Methods and apparatuses for applying a substrate onto an elevator sheave | Xiaoyuan Chang, Peter Keyo, Lance L. Lavender, Hong Yang | 2020-05-12 |