Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7090301 | Apparatus and method for lumbar support structure | — | 2006-08-15 |
| 6860374 | Apparatus and method for ratchet actuator | Jintao Liu | 2005-03-01 |
| 6691851 | Apparatus and method for ratchet actuator | Jintao Liu | 2004-02-17 |
| 6637575 | Apparatus and method for thin profile ratchet actuator | Jintao Liu | 2003-10-28 |