Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5129378 | Two-cycle marine engine having aluminum-silicon alloy block and iron plated pistons | Raymond J. Donahue, W. Donald Schultz, Benjamin L. Sheaffer | 1992-07-14 |
| 4187809 | Exhaust system for multiple cylinder two-stroke engines | David W. Kusche | 1980-02-12 |