Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6628049 | Spark plug with simultaneously multi-firing cap | Bert Rosenthal | 2003-09-30 |
| 6608430 | Spark plug with multi-point firing cap | — | 2003-08-19 |
| D459697 | Portion of a spark plug body | — | 2002-07-02 |