Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6452314 | Spark plug having a protective titanium thereon, and methods of making the same | — | 2002-09-17 |
| 6406345 | Spark plug shell having a bimetallic ground electrode, spark plug incorporating the shell, and method of making same | Gary B. Zulauf | 2002-06-18 |