Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5471101 | High efficiency electrical machine with minimized material content | — | 1995-11-28 |
| 4857788 | Magnetic top wedge | Charles Shufflebarger | 1989-08-15 |
| 4827597 | Method of forming magnetic top wedge | Charles Shufflebarger | 1989-05-09 |
| 4761580 | Magnetic top wedge | Charles Shufflebarger | 1988-08-02 |