Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9350143 | Anti-fouling spark plug and method of making | Peter D. Unger, Ronald P. Rohrbach, Jing Zheng | 2016-05-24 |
| 9337627 | Method of applying a coating to a spark plug insulator | Jing Zheng, Prabhu Megharaj | 2016-05-10 |