Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4774456 | Curve tracer accessory device | — | 1988-09-27 |
| 4382224 | Electronic system for high power load control | — | 1983-05-03 |
| 4358732 | Synchronized voltage contrast display analysis system | Merrill Johnston, Alex Shumka, Kenneth C. Evans | 1982-11-09 |
| 4301409 | Solar cell anomaly detection method and apparatus | Alex Shumka, Michael Gauthier | 1981-11-17 |