Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5645803 | Catalyst means for the catalytic treatment of exhaust gas catalytic converter | J. W. Jorg Alexnat | 1997-07-08 |
| 5593645 | Catalytic converter for the catalytic treatment of exhaust gas | Fr ed eric P. D. F. Petitjean | 1997-01-14 |