Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4712092 | Parallel encoded piezoelectric keyboard switch and array | Scott D. Buell, James Graham | 1987-12-08 |
| 4348638 | Power measuring apparatus | — | 1982-09-07 |
| 4281313 | Barooptical verification apparatus | — | 1981-07-28 |
| 4236112 | Power measuring apparatus | — | 1980-11-25 |
| 4204115 | Removably attachable watt-hour meter monitor device | — | 1980-05-20 |