Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7406995 | Pull cord device and window covering including the same | — | 2008-08-05 |
| 7325279 | Cord-releasing safety device for window blind | — | 2008-02-05 |
| 7163043 | Vertical window blind with a decorative curtain | — | 2007-01-16 |
| 6957682 | Carrier-positioning device for a vertical blind | Chou Ho SUNG | 2005-10-25 |
| 6761203 | Balanced window blind having a spring motor for concealed pull cords thereof | — | 2004-07-13 |
| 6752194 | Window blind having an operating device for concealed pull ropes thereof | — | 2004-06-22 |
| 6508293 | Spring motor assembly for a venetian blind without outside hanging lifting cords | — | 2003-01-21 |
| 6213188 | Cord control device for a venetian blind to control raising and lowering of the slats | — | 2001-04-10 |
| 5904198 | Operating device for a venetian blind to control raising and lowering of the slats and to adjust tilting angle of the slats | — | 1999-05-18 |
| 5850863 | Operating device for a venetian blind to control raising and lowering of the slats and to adjust tilting angle of the slats | — | 1998-12-22 |
| 5819832 | Operating device for a venetian blind to control raising and lowering of the slats and to adjust tilting angle of the slats | — | 1998-10-13 |
| 5749405 | Operating device for a venetian blind to control raising and lowering of the salts and to adjust tilting angle of the slats | — | 1998-05-12 |