Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D991616 | Hydraulic lifting jack | Zhengyang Liu | 2023-07-04 |
| D946233 | Hydraulic lifting jack | Zhengyang Liu | 2022-03-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D991616 | Hydraulic lifting jack | Zhengyang Liu | 2023-07-04 |
| D946233 | Hydraulic lifting jack | Zhengyang Liu | 2022-03-15 |