Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11665917 | DC generation energy harvesting system and manufacturing method thereof | Ma Chunqing, Yeon Woo Choi | 2023-05-30 |
| 11561038 | Grain refrigerator | Sung Chul Park | 2023-01-24 |