Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5456217 | Device for adding additives to liquid fuels | Walter Thunker, Gabriele Lohmann, Arnim Marschewski, H. J. Langer | 1995-10-10 |
| 5195466 | Method for the controlled addition of an additive to the fuel supply of a vehicle internal combustion engine | Hans-Joachim Langer, Erwin Strohmer, Dietmar Hagenloch | 1993-03-23 |
| 5042248 | Process and apparatus for the regeneration of a soot-particle filter in an internal-combustion engine | Jorg Abthoff, Hans-Dieter Schuster, Hans-Joachim Langer, Erwin Strohmer, Rolf Gabler | 1991-08-27 |
| 4876852 | Diesel internal combustion engine with an exhaust gas line system | Joerg Abthoff, Hans-Dieter Schuster, Hans-Joachim Langer, Erwin Strohmer, Rolf Gabler | 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-Dieter Schuster, Hans-Joachim Langer, Erwin Strohmer, Rolf Gabler | 1989-08-01 |