Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698165 | Ozone filter and process for producing the same | Isao Terada | 1997-12-16 |
| 5262129 | Ozone filter and method of production thereof | Isao Terada, Nobuo Tomita | 1993-11-16 |