Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10737906 | Elevator suspension and transmission strip | Frank Dudde, Peter Feldhusen, Alan M. Parker, Jie Xu, Stephen D. Allen +1 more | 2020-08-11 |
| 9944493 | Elevator suspension and transmission strip | Frank Dudde, Peter Feldhusen, Alan M. Parker, Jie Xu, Stephen D. Allen +1 more | 2018-04-17 |