Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5785937 | Method for the catalytic conversion of nitrogen oxides present in the exhaust gas of an internal-combustion engine | Ronald Neufert, Wieland Mathes, Lothar Hofmann | 1998-07-28 |