Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12122639 | Mobile interface, communication, and control system to facilitate operation of elevator cars with media options | Patricia Derwinski, Nicholas Fraser | 2024-10-22 |
| 11905142 | Elevator system control based on building sway | Randy Roberts, George Scott Copeland, Luis C. Encinas Carreno, Patricia Derwinski | 2024-02-20 |
| 11292693 | Elevator system control based on building sway | Randy Roberts, George Scott Copeland, Luis C. Encinas Carreno, Patricia Derwinski | 2022-04-05 |
| 11267675 | Cooling system for elevator with electronic visual displays | Patricia Derwinski | 2022-03-08 |