Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10160067 | Data acquisition using a purge plug | Christopher J. Nelli, Joseph Peter McGowan, Steven Edward Barhorst | 2018-12-25 |
| 4558280 | Ignition secondary analyzer | Stephen E. Koehl | 1985-12-10 |
| 4452079 | Acoustic tachometer | — | 1984-06-05 |