Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6562745 | Aging resistant, porous silicon Carbide ceramic igniter | Craig A. Willkens, James Olson, Roger Lin | 2003-05-13 |
| 6474492 | Multiple hot zone igniters | Craig A. Willkens, Sebastien Bardon | 2002-11-05 |
| 6297183 | Aging resistant porous silicon carbide ceramic igniter | Craig A. Willkens, James Olson, Roger Lin | 2001-10-02 |
| 5785911 | Method of forming ceramic igniters | Craig A. Willkens, Francis A. Jurnak | 1998-07-28 |
| 4970057 | Silicon nitride vacuum furnace process | Craig A. Willkens, Stephen D. Hartline | 1990-11-13 |