Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366068 | Filter and method of making same | Kenneth C. Hou | 1982-12-28 |
| 4321288 | Process of making an improved filter media | — | 1982-03-23 |
| 4309247 | Filter and method of making same | Kenneth C. Hou | 1982-01-05 |