Issued Patents 2011
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8079136 | Method for forming layered heating element for glow plug | John W. Hoffman, James L. May | 2011-12-20 |
| 8053966 | Ceramic spark plug insulator and method of making | — | 2011-11-08 |
| 8044561 | Ceramic electrode, ignition device therewith and methods of construction thereof | James D. Lykowski | 2011-10-25 |
| 8044565 | Composite ceramic electrode and ignition device therewith | James D. Lykowski | 2011-10-25 |
| 8012898 | Ceramic with improved high temperature electrical properties for use as a spark plug insulator | John W. Hoffman | 2011-09-06 |
| 7944135 | Spark plug and methods of construction thereof | — | 2011-05-17 |