Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6204594 | Spark plug with pressure sensor | — | 2001-03-20 |
| 6166481 | Anti-carbon fouling spark plug | Randy O. Knapp, Daniel Lee Tribble | 2000-12-26 |
| 6132277 | Application of precious metal to spark plug electrode | Daniel Lee Tribble, Michael E. Garrett, Timothy George Timko | 2000-10-17 |
| 6094990 | Spark plug with concentric pressure sensor | James D. Lykowski, Thomas Schuster | 2000-08-01 |