Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6326719 | Spark plug shell having a bimetallic ground electrode spark plug incorporating the shell, and method of making same | Gary B. Zulauf | 2001-12-04 |
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6326719 | Spark plug shell having a bimetallic ground electrode spark plug incorporating the shell, and method of making same | Gary B. Zulauf | 2001-12-04 |