Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9815665 | Battery mounting in elevator hoistway | Daryl J. Marvin, David J. Lanesey, Bassel Al-Annouf, Ismail Agirman, HanJong Kim | 2017-11-14 |
| 9719569 | Brake for electric motor | Zbigniew Piech, Daryl J. Marvin | 2017-08-01 |
| 9617117 | Elevator brake control including a solid state switch in series with a relay switch | — | 2017-04-11 |