Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10577199 | Robot cleaner, refrigerator, container transfer system, and method of transferring and retrieving container using the robot cleaner | Sang Tak Lee, Sang Hak Kim, Ji Ho Seo, Ho-Jin Lee, Sang Hwa Choi | 2020-03-03 |