Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4537509 | Optical inspection and alignment verification system | — | 1985-08-27 |
| 4343025 | Transducer arm assembly for floppy disk | Thomas Winkler, Ricky J. Madsen | 1982-08-03 |
| 4315292 | Beveled magnetic heads for floppy disk | — | 1982-02-09 |
| 4309732 | Transducer supporting assembly for double sided floppy disk | Ricky J. Madsen | 1982-01-05 |