Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4970440 | Orientation independent ignitron with grooved cathode | Wilfried O. Eckhardt, Roland G. Fleig | 1990-11-13 |
| 4645978 | Radial geometry electron beam controlled switch utilizing wire-ion-plasma electron source | Robin J. Harvey | 1987-02-24 |
| 4642522 | Wire-ion-plasma electron gun employing auxiliary grid | Robin J. Harvey, Robert W. Schumacher | 1987-02-10 |