Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6461398 | Regenerable particle filter for the removal of soot particles from exhaust gases | Peter Zima, Karl Heinz Friedel | 2002-10-08 |
| 4932374 | Fuel injector nozzle for internal combustion engine | Edward D. Klomp | 1990-06-12 |
| 4406254 | Method for lean operation of spark-ignited gasoline-fueled reciprocating engine | Stephen J. Harris | 1983-09-27 |