Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7580590 | Optical image system surface resolution calibration method | Wei-Che Chang, Huang-Chang Chang | 2009-08-25 |
| 7423764 | Integrated interference scanning method | Chieh-Cheng Liao, Huang-Chang Chang, Wei-Che Chang | 2008-09-09 |
| 6972851 | Approaching apparatus using spectral shift for sample-probe distance regulation | Hau-Wei Wang | 2005-12-06 |
| 6237392 | Inspection apparatus for gas detectors | Gu Yu | 2001-05-29 |
| 6177672 | Dual-chamber gas sampling device | Yung-Hsin Chen, Jack Chen | 2001-01-23 |
| 6151971 | Gas sampling device | Yung-Hsin Chen, Jack Chen | 2000-11-28 |