Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10494228 | Guiding devices for elevator systems having roller guides and motion sensors | Bruce P. Swaybill, Randy Roberts, Patricia Derwinski | 2019-12-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10494228 | Guiding devices for elevator systems having roller guides and motion sensors | Bruce P. Swaybill, Randy Roberts, Patricia Derwinski | 2019-12-03 |