Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6805143 | Pull cord mechanism for self-opening foldable umbrella | Chiu-Chan Yen | 2004-10-19 |
| 6681784 | Umbrella facet connecting mechanism | Chiu-Chan Yen | 2004-01-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6805143 | Pull cord mechanism for self-opening foldable umbrella | Chiu-Chan Yen | 2004-10-19 |
| 6681784 | Umbrella facet connecting mechanism | Chiu-Chan Yen | 2004-01-27 |