Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6244226 | Free piston internal combustion engine with rotating piston | Willibald G. Berlinger, Francis J. Raab | 2001-06-12 |
| 6164250 | Free piston internal combustion engine with piston head having a radially moveable cap | Brett M. Bailey | 2000-12-26 |
| 6076506 | Piston for use in an engine | Willibald G. Berlinger, T. Pin P. Shyu | 2000-06-20 |
| 5087848 | Slotted bus bar for a piezoelectric solid state motor | Kurtis C. Kelley | 1992-02-11 |
| 5055734 | Single-piece multiple electrode conductor | Charles E. Grawey, L. Ted Johnson, John F. Szentes | 1991-10-08 |