Issued Patents 2018
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10011463 | Elevator door friction belt drive including one or more markers | YiSug Kwon | 2018-07-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10011463 | Elevator door friction belt drive including one or more markers | YiSug Kwon | 2018-07-03 |