Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698949 | Hollow beam electron tube having TM.sub.0x0 resonators, where X is greater than 1 | Heinz Bohlen | 1997-12-16 |
| 5589736 | Frequency multiplier including grid having plural segments | Arthur Karp | 1996-12-31 |
| 5317233 | Vacuum tube including grid-cathode assembly with resonant slow-wave structure | Arthur Karp | 1994-05-31 |
| 5315210 | Klystron resonant cavity operating in TM.sub.01X mode, where X is greater than zero | — | 1994-05-24 |
| 5233269 | Vacuum tube with an electron beam that is current and velocity-modulated | — | 1993-08-03 |