Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9815665 | Battery mounting in elevator hoistway | Kyle W. Rogers, Daryl J. Marvin, David J. Lanesey, Bassel Al-Annouf, HanJong Kim | 2017-11-14 |
| 9586789 | Elevator braking in a battery powered elevator system | Daryl J. Marvin | 2017-03-07 |