Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11118654 | Apparatus for timely and securely locking and releasing a rope | Ti-An Chih | 2021-09-14 |
| 11118655 | Assembling structure for timely and securely locking and releasing a rope | Ti-An Chih | 2021-09-14 |