Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10927915 | Spring useful for elevator safety device | Enrico Manes, Robert A. Barth, Xiaodong Luo, Shihemn Chen, Daryl J. Marvin +1 more | 2021-02-23 |
| 10899580 | Elevator cab suspension assembly for a double deck elevator | Walter Thomas Schmidt, Enrico Manes, Shihemn Chen, Zaffir A. Chaudhry, Xiaodong Luo +4 more | 2021-01-26 |