Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5965025 | Fluid extraction | Chien M. Wai | 1999-10-12 |
| 5783627 | Dense gas-compatible enzymes | Fu-jung Kao, Samuel P. Sawan, L. Dale Sivils, W. Dale Spall | 1998-07-21 |
| 5730874 | Extraction of metals using supercritical fluid and chelate forming legand | Chien M. Wai | 1998-03-24 |
| 5356538 | Supercritical fluid extraction | Chien M. Wai | 1994-10-18 |