Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876852 | Diesel internal combustion engine with an exhaust gas line system | Joerg Abthoff, Hans-Joachim Langer, Erwin Strohmer, Rolf Gabler, Roland Schulte | 1989-10-31 |
| 4877339 | Bearing support of a throttle valve shaft in the housing of an exhaust gas line | Christoph Noller, Gottfried Wollenraupt, Reiner Kreeb, Roland Ludwig Huss | 1989-10-31 |
| 4852349 | Arrangement for the removal of soot particles from the exhaust gas stream of a diesel internal combustion engine | Joerb Abthoff, Hans-Joachim Langer, Erwin Strohmer, Rolf Gabler, Roland Schulte | 1989-08-01 |
| 4824363 | Process and equipment for removing odorous substances from the fresh air for vehicle cabins | Joerg Abthoff, Karlwalter Schmidt, Gottfried Wollenhaupt, Hans Schmitz | 1989-04-25 |