Issued Patents 2016
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9368943 | Spark plug having multi-layer sparking component attached to ground electrode | Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller | 2016-06-14 |
| 9318879 | Spark plug having firing pad | Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller | 2016-04-19 |
| 9236713 | Spark plug having improved ground electrode orientation and method of forming | Patrick M. Gfell, Don R. Gregg | 2016-01-12 |
| 9231379 | Spark plug having firing pad | Nathan A. Thomson, Richard L. Keller | 2016-01-05 |