Issued Patents 2022
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11459756 | Corrosion-induced shape memory fiber, preparation method and application thereof | Yuyan SUN, Ziliang Wang | 2022-10-04 |
| 11412821 | Straight-pole sun umbrella hand-cranking structure | Defu Liu | 2022-08-16 |
| 11317688 | Straight-pole sun umbrella hand-cranking device | Defu Liu | 2022-05-03 |
| D949549 | Crank handle device of sun umbrella | — | 2022-04-26 |
| D948201 | Crank handle device of sun umbrella | — | 2022-04-12 |