Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7446248 | Apparatus and method for self-tuning stringed musical instruments with an accompanying vibrato mechanism | Bryan S. Johnson, Frank Strazzabosco, Steve Kith | 2008-11-04 |
| 6066790 | Multiple frequency display for musical sounds | Stephen J. Freeland | 2000-05-23 |
| 5977467 | Frequency display for an automatically tuned stringed instrument | Stephen J. Freeland | 1999-11-02 |
| 5859378 | Musical instrument self-tuning system with capo mode | Stephen J. Freeland | 1999-01-12 |
| 5824929 | Musical instrument self-tuning system with calibration library | Stephen J. Freeland, Gerard F. Hallaren | 1998-10-20 |
| 4909126 | Automatic musical instrument tuning system | Stephen J. Freeland | 1990-03-20 |
| 4803908 | Automatic musical instrument tuning system | Stephen J. Freeland | 1989-02-14 |