Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4225462 | Catalyst for reducing nitrogen oxides and process for producing the same | Sumio Umemura, Ryozo Kitoh, Shigeru Itoh, Yasutaka Arima, Hideaki Fukui | 1980-09-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4225462 | Catalyst for reducing nitrogen oxides and process for producing the same | Sumio Umemura, Ryozo Kitoh, Shigeru Itoh, Yasutaka Arima, Hideaki Fukui | 1980-09-30 |