Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6199101 | Process for access control to computer-controlled programs usable by several user units at the same time | — | 2001-03-06 |
| 5943858 | Premixing chamber for an exhaust gas purification system | Lothar Hofmann, Udo Klumpp, Wieland Mathes | 1999-08-31 |