Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10011463 | Elevator door friction belt drive including one or more markers | John Ferrisi | 2018-07-03 |
| 9975735 | Cab isolation of an elevator car | Randall Keith Roberts, Richard N. Fargo, Walter Thomas Schmidt | 2018-05-22 |