Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11166562 | Footrest driving apparatus and lift chair therewith | Liming Zhu | 2021-11-09 |
| 11109681 | Self-locking mechanism and lift chair therewith | Liming Zhu | 2021-09-07 |
| 11058269 | Vacuum cleaner | Haowei Mei, Jin Hong | 2021-07-13 |