Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10781075 | Emergency safety actuator for an elevator | Tadeusz Pawel Witczak, Zbigniew Piech | 2020-09-22 |
| 10773922 | Drive and control for six-phase electrical machines with negligible common-mode voltage | Dong JIANG, Shashank Krishnamurthy | 2020-09-15 |
| 10745238 | Power distribution for multicar, ropeless elevator system | Shashank Krishnamurthy, Luis Arnedo | 2020-08-18 |
| 10654686 | Electromagnetic safety trigger | Guohong Hu | 2020-05-19 |
| 10618776 | Brake member actuation mechanism | Guohong Hu | 2020-04-14 |
| 10578639 | Hybrid altimeter for measuring vertical velocity | Craig Drew Bogli, Benjamin J. Watson, Arthur T. Grondine, Marcin Wroblewski | 2020-03-03 |