Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10850955 | Controller for hoist capable of multi-stage speed control and hoist including the same controller | Sung Woo Woo | 2020-12-01 |
| 10781088 | Controller for hoist capable of multi-speed control and hoist including the same controller | Si Kyung Kim | 2020-09-22 |