Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4419200 | Electrical coalescense of liquid emulsions | Edward C. Hsu, Norman N. Li | 1983-12-06 |
| 4415426 | Electrodes for electrical coalescense of liquid emulsions | Edward C. Hsu, Norman N. Li | 1983-11-15 |
| 4183681 | Emulsion preparation method using a packed tube emulsifier | Norman N. Li | 1980-01-15 |