Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4752713 | Thermionic cathode of high emissive power for an electric tube, and process for its manufacture | — | 1988-06-21 |
| 4275123 | Hot-cathode material and production thereof | Gernot Gessinger, Sigfrid Strassler | 1981-06-23 |
| 4274029 | Gas discharge device with metal oxide carrier in discharge path | — | 1981-06-16 |
| 4274030 | Thermionic cathode | — | 1981-06-16 |