Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6192906 | Automatic opening umbrella mechanisms | — | 2001-02-27 |
| 6024108 | Unfolded umbrella with an improved opening structure | Sheng Wang | 2000-02-15 |
| D408621 | Pentagonal umbrella shaft | — | 1999-04-27 |
| 5868151 | Controlling apparatus of an umbrella | — | 1999-02-09 |
| 5588455 | Securing runner of an umbrella | — | 1996-12-31 |
| 5494065 | Powerful strutting action umbrella framework | Shen Wang | 1996-02-27 |
| 5472006 | Structure four-section umbrella framework with attachable flexible frame member | Shen Wang | 1995-12-05 |
| 5387048 | Securing means for telescopic sticks of a multiple-fold umbrella | — | 1995-02-07 |
| 5323801 | Tail rib structure having an effect of enhancing wind-resistant strength of an umbrella | — | 1994-06-28 |
| 5297572 | Improved frames of a folded umbrella | — | 1994-03-29 |