Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11293318 | Diesel exhaust particulate collectors | Robert S. Salsgiver, Robert Benjamin, Kelson J. Majerle, Kent A. McColley, Jason C. Board +1 more | 2022-04-05 |
| 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, Lee Randall Franz, Edgar Arnold Leone, Alex Kozlov | 2000-06-06 |
| 6045424 | Spark plug tip having platinum based alloys | Chin-Fong Chang, Lee Randall Franz, Edgar Arnold Leone | 2000-04-04 |
| 5980345 | Spark plug electrode having iridium based sphere and method for manufacturing same | Chin-Fong Chang, Lee Randall Franz, Edgar Arnold Leone | 1999-11-09 |
| 5973443 | Spark plug electrode tip for internal combustion engine | Chin-Fong Chang, Michael S. Zedalis, Edgar Arnold Leone | 1999-10-26 |