Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8276563 | Internal combustion engine piston | David P. Quigley, Aaron S. Quinton, Dana Richardson, Doug Doup | 2012-10-02 |
| 5970946 | Non-annular piston bowl for two-valve engines using offset injectors | Aaron S. Quinton, Nha T. Le | 1999-10-26 |
| 4944260 | Air intake heater system for internal combustion engines | Robert T. Niemczyk | 1990-07-31 |