Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6107552 | Soundboards and stringed instruments | Ashvin R. Coomar | 2000-08-22 |
| 5159401 | Elevation-angle sensing, celestial navigation and surveying | — | 1992-10-27 |
| 4969381 | Composite-materials acoustic stringed musical instrument | Linda M. Decker, Christopher J. Halford | 1990-11-13 |
| 4873907 | Composite-materials acoustic stringed musical instrument | Linda M. Decker, Christopher J. Halford | 1989-10-17 |
| 4763418 | Automatic sextant | — | 1988-08-16 |
| 4707926 | Automatic sextant | — | 1987-11-24 |