Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8680758 | Spark plug having a plastic upper insulator and method of construction | Kevin L. Miller, Richard L. Keller, William J. Walker, Jr., James D. Lykowski, Shuwei Ma +7 more | 2014-03-25 |