Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698165 | Ozone filter and process for producing the same | Shinichiro Arai | 1997-12-16 |
IT
Isao Terada
Overall (1997): #137,842 of 185,788Top 75%
1
Patents 1997