Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6597931 | System and method for absolute oxygen saturation | Xuefeng Cheng, Xiaorong Xu, Shuoming Zhou | 2003-07-22 |
| 6587703 | System and method for measuring absolute oxygen saturation | Xuefeng Cheng, Xiaorong Xu, Shuoming Zhou | 2003-07-01 |
| 6527404 | Ratchet wrench and lighting circuit arrangement | — | 2003-03-04 |
| 6516209 | Self-calibrating optical imaging system | Xuefeng Cheng, Xiaorong Xu, Shuoming Zhou, Ming-Yih Wang, Feng Li +1 more | 2003-02-04 |