Issued Patents 2018
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10099894 | Active damping of a hovering elevator car based on vertical oscillation of the hovering elevator car | Randall Keith Roberts, Ismail Agirman | 2018-10-16 |
| 9932205 | Asymmetric and steered sheaves for twisted multi-belt elevator systems | Alan Stover Githens | 2018-04-03 |