Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8245756 | Pull down, push up, shade apparatus | Li-Ming Cheng | 2012-08-21 |
| 7036547 | Height adjustable pleated shade | Li-Ming Cheng | 2006-05-02 |
| 7000521 | Pleated shade cut-off method and apparatus | Li-Ming Cheng | 2006-02-21 |
| 6991020 | Pull down, push up, shade assembly | Li-Ming Cheng | 2006-01-31 |
| 6948545 | Window covering height adjustment method and apparatus using traveling rotor | Li-Ming Cheng | 2005-09-27 |
| 6889741 | Window covering height adjustment apparatus and method using multiple interconnected cord winding rotors | Li-Ming Cheng | 2005-05-10 |
| 6837294 | Pull down, push up, shade assembly | Li-Ming Cheng | 2005-01-04 |
| 6761202 | Window covering height adjustment method and apparatus using traveling rotor | Li-Ming Cheng | 2004-07-13 |
| 6681831 | Window covering height adjustment apparatus and method using fixed position rotor | Li-Ming Cheng | 2004-01-27 |
| 6443207 | Window covering adjustment apparatus and method | Li-Ming Cheng | 2002-09-03 |