Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9731941 | Braking device for a door operator | Jinkoo Lee, Jung Sam Kim, Hansoo Shim, Guohong Hu, Mark S. Thompson | 2017-08-15 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9731941 | Braking device for a door operator | Jinkoo Lee, Jung Sam Kim, Hansoo Shim, Guohong Hu, Mark S. Thompson | 2017-08-15 |