Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8350454 | Iridium alloy for spark plug electrodes | Eric Passman, Jeffrey T. Boehler | 2013-01-08 |
| 8030830 | Iridium alloy for spark plug electrodes | Eric Passman, Jeffrey T. Boehler | 2011-10-04 |
| 6071163 | Wear-resistant spark plug electrode tip containing platinum alloys, spark plug containing the wear-resistant tip, and method of making same | Chin-Fong Chang, Richard Dale Taylor, Lee Randall Franz, Alex Kozlov | 2000-06-06 |
| 6045424 | Spark plug tip having platinum based alloys | Chin-Fong Chang, Richard Dale Taylor, Lee Randall Franz | 2000-04-04 |
| 5980345 | Spark plug electrode having iridium based sphere and method for manufacturing same | Chin-Fong Chang, Richard Dale Taylor, Lee Randall Franz | 1999-11-09 |
| 5973443 | Spark plug electrode tip for internal combustion engine | Chin-Fong Chang, Michael S. Zedalis, Richard Dale Taylor | 1999-10-26 |