Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6276330 | Air/fuel induction system for developing swirl motion of an air/fuel mixture | Danrich Henry Demitroff, James Roy Bivins, John Clarence Lee, Michael Bruno Magnan | 2001-08-21 |
| 5803045 | Air intake slide throttle for an internal combustion engine | Philip Damian Cierpial, Raymond Alan Kach | 1998-09-08 |
| 5718198 | Slide throttle valve for an engine intake system | Philip Damian Cierpial, Raymond Alan Kach | 1998-02-17 |