Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10619273 | Interchangeable knitting needles with secure connection | Liyun Zheng | 2020-04-14 |
| 10443164 | Knitting needle with swivel joint | Liyun Zheng | 2019-10-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10619273 | Interchangeable knitting needles with secure connection | Liyun Zheng | 2020-04-14 |
| 10443164 | Knitting needle with swivel joint | Liyun Zheng | 2019-10-15 |