Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7487663 | Method for selecting fuel to both optimize the operating range and minimize the exhaust emissions of HCCI engines | Charles H. Schleyer, Kevin P. Duffy, Michael P. Liechty | 2009-02-10 |
| 7131402 | Method for controlling exhaust emissions from direct injection homogeneous charge compression ignition engines | Charles H. Schleyer, Kenneth D. Erdman, Kevin P. Duffy | 2006-11-07 |
| 4955328 | Leading piston engine with two cylinders interconnected through a transfer port | — | 1990-09-11 |
| 4876992 | Crankshaft phasing mechanism | — | 1989-10-31 |