Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5410253 | Method of indicating combustion in an internal combustion engine | Rodger B. Evans, Robert Mince, Carlton T. Davis, Joel F. Downey, Mark A. Laubenstein | 1995-04-25 |
| 5392754 | Method of suppressing ringing in an ignition circuit | Mark A. Laubenstein, Marc R. Engelhardt | 1995-02-28 |
| 5146882 | Method and apparatus for cold starting a spark ignited internal combustion engine fueled with an alcohol-based fuel mixture | Norman D. Brinkman, Cameron J. Dasch, Lynn A. Rockwell | 1992-09-15 |
| 4738239 | Ignition system | David L. Haines | 1988-04-19 |
| 4487063 | Solid state mass air flow sensor | — | 1984-12-11 |