Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5443242 | Conformed valve spring wear plate | Randy R. Frank | 1995-08-22 |
| 4918805 | Welding method for cylinder head repair | Kenneth J. Liszka, Daniel J. Dobruse, Steve E. Potopa, Charles Gammill | 1990-04-24 |