Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6170498 | Multiple-fold automatic umbrella | — | 2001-01-09 |
| 5645094 | Multiple-fold automatic umbrella with reinforced ribs and simplified mechanism | — | 1997-07-08 |
| 5617889 | Multiple-fold automatic umbrella with reinforced ribs and simplified mechanism | — | 1997-04-08 |
| 5267583 | Multiple-fold automatic umbrella controlled by single push button | — | 1993-12-07 |
| 5247955 | Ergonomically operating automatic umbrella | — | 1993-09-28 |
| 5232004 | Automatic umbrella having wind-resistant buffer effect | — | 1993-08-03 |
| 5178174 | Silently smoothly operating automatic umbrella controlled by single push button | — | 1993-01-12 |
| 5161562 | Umbrella with simplified automatic closing mechanism | — | 1992-11-10 |