Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7481535 | Complete autorefractor system in an ultra-compact package | Don R. Yancey, Charles E. Campbell | 2009-01-27 |
| 7001020 | Complete autorefractor system in an ultra-compact package | Don R. Yancey, Charles E. Campbell | 2006-02-21 |
| 5952958 | Positioning system and method | Jerry Speasl | 1999-09-14 |
| 5815114 | Positioning system and method | Jerry Speasl | 1998-09-29 |
| 5414392 | Amplifier circuit | — | 1995-05-09 |
| 4499510 | Precision alignment system for information storage devices | Philip Harding | 1985-02-12 |