Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11613862 | Water surface garbage salvaging device | Jie Cui, Chunyan Ji | 2023-03-28 |
| 11396731 | Floating garbage cleaning device for floating garbage on water surface | Chunyan Ji, Jie Cui, Jianting Guo | 2022-07-26 |