Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5131030 | Light controlled telephone ringer | — | 1992-07-14 |
| 4896410 | Method of assembling tube arrays | J. B. Spitzmesser, F. David Doty, Brian Miller | 1990-01-30 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5131030 | Light controlled telephone ringer | — | 1992-07-14 |
| 4896410 | Method of assembling tube arrays | J. B. Spitzmesser, F. David Doty, Brian Miller | 1990-01-30 |