Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4419187 | Apparatus and method for thermal membrane distillation | Dah Y. Cheng | 1983-12-06 |
| 4419242 | Composite membrane for a membrane distillation system | Dah Y. Cheng | 1983-12-06 |
| 4316772 | Composite membrane for a membrane distillation system | Dah Y. Cheng | 1982-02-23 |