Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6016822 | Automatic umbrella with quadruple folds or the like | Jung-Jen Chang | 2000-01-25 |
| 5125426 | Automatically closing umbrella | Tsun-Zong Wu | 1992-06-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6016822 | Automatic umbrella with quadruple folds or the like | Jung-Jen Chang | 2000-01-25 |
| 5125426 | Automatically closing umbrella | Tsun-Zong Wu | 1992-06-30 |