| Patents for H01J 25 - Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons (1,999) |
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| 11/30/1989 | WO1989011754A1 High gain miniature crossed-field amplifier |
| 11/30/1989 | WO1989011728A1 Gigatron microwave amplifier |
| 11/16/1989 | WO1989010001A3 Plasma wave tube and method |
| 10/19/1989 | WO1989010002A1 Improved plasma wave tube |
| 10/19/1989 | WO1989010001A2 Plasma wave tube and method |
| 10/19/1989 | WO1989010000A1 Plasma-assisted high-power microwave generator |
| 09/12/1989 | US4866344 High voltage power supply for a microwave electron tube |
| 08/30/1989 | EP0330539A1 Mode transformer for a microwave transmission circuit |
| 08/09/1989 | EP0327116A1 Magnetron |
| 08/08/1989 | US4855645 Magnetron for microwave oven |
| 07/27/1989 | WO1989006869A1 Mode transformer for hyper-frequency power transmission circuit |
| 07/25/1989 | US4851788 Mode suppressors for whispering gallery gyrotron |
| 07/19/1989 | EP0324667A1 Electron collector for an electron tube |
| 07/13/1989 | WO1989006445A1 Multipactor device with radioactive electron source |
| 06/13/1989 | US4839561 Gyrotron device |
| 05/17/1989 | EP0316092A1 Magnetron Anodes |
| 05/16/1989 | US4831335 High gain miniature crossed-field amplifier |
| 05/09/1989 | US4829527 Wideband electronic frequency tuning for orotrons |
| 05/09/1989 | US4829261 Circuitless electron beam amplifier (CEBA) |
| 04/11/1989 | US4820996 Amplifying arrangements |
| 03/28/1989 | US4816785 Multipactor device with radioactive electron source |
| 03/21/1989 | US4814720 Low noise crossed-field amplifier |
| 02/01/1989 | EP0301929A1 Gyro-TWT protected against unwanted modes |
| 01/31/1989 | US4801848 For producing broadband radiation |
| 01/24/1989 | US4800353 Micropole undulator |
| 01/24/1989 | US4800322 Broadband klystron cavity arrangement |
| 12/28/1988 | CA1247742A Tunable magnetron |
| 12/20/1988 | CA1247239A1 Beam tube with density plus velocity modulation |
| 12/06/1988 | US4789808 Gyrotron device with adjustable pitch factor |
| 11/17/1988 | EP0291487A2 Wide-band extended interaction device |
| 11/15/1988 | US4785261 Magnetically insulated transmission line oscillator |
| 10/25/1988 | US4780647 Compact high power accelerator |
| 10/11/1988 | US4777406 High voltage power supply particularly adapted for a TWT |
| 09/28/1988 | CN87212936U External equalizer of travelling-wave tube with electricity adjusting balance |
| 09/27/1988 | US4774436 Magnetrons |
| 09/14/1988 | EP0281858A1 High-power gyrotron for generating electromagnetic millimeter or submillimeter waves |
| 09/06/1988 | USH527 Gyro-TWT stabilization method using coupled lossy waveguide |
| 08/16/1988 | US4764710 High-efficiency broad-band klystron |
| 08/09/1988 | US4763043 P-N junction semiconductor secondary emission cathode and tube |
| 07/26/1988 | US4760311 Sub-nanosecond rise time multi-megavolt pulse generator |
| 07/06/1988 | EP0273713A2 A low-noise crossed-field amplifier |
| 06/14/1988 | US4751429 High power microwave generator |
| 06/07/1988 | US4749906 Multiple beam lasertron |
| 05/25/1988 | EP0268405A2 High-efficiency broad-band klystron |
| 05/10/1988 | US4743805 Anode assembly of magnetron and method of manufacturing the same |
| 05/03/1988 | US4742271 Radial-gain/axial-gain crossed-field amplifier (radaxtron) |
| 04/13/1988 | EP0263491A2 Magnetron for microwave oven |
| 04/12/1988 | US4737738 Extended interaction device tuned by movable delay line structure |
| 03/23/1988 | EP0260825A2 High voltage power supply particularly adapted for a TWT |
| 03/22/1988 | US4733133 Method and apparatus for producing microwave radiation |
| 03/22/1988 | US4733131 Multiple-beam klystron |
| 03/08/1988 | US4730170 Virtual cathode microwave generator having annular anode slit |
| 01/07/1988 | EP0251830A1 Multiple beam lasertron |
| 12/16/1987 | EP0249370A1 Magnetron |
| 12/09/1987 | EP0248689A1 Multiple-beam klystron |
| 12/01/1987 | CA1229919A1 Transverse field interaction multibeam amplifier |
| 11/24/1987 | US4709129 Microwave heating apparatus |
| 11/10/1987 | US4705988 Device for guiding an electron beam |
| 09/22/1987 | US4695766 Traveling wave tube and its method of construction |
| 07/28/1987 | CA1224873A1 Linear beam tube with reflected electron trap |
| 07/07/1987 | US4679197 Gyro free electron laser |
| 07/01/1987 | EP0227463A2 Secondary emission cathode and tube |
| 06/30/1987 | US4677342 Semiconductor secondary emission cathode and tube |
| 06/23/1987 | CA1223353A1 Broadband transverse field interaction continuous beam amplifier |
| 06/03/1987 | EP0224234A2 Quasi-optical open resonator for millimetric and submillimetric electromagnetic waves |
| 06/02/1987 | CA1222563A1 Emitron: microwave diode |
| 05/26/1987 | US4668924 Free electron diode oscillator |
| 05/26/1987 | US4668894 Waveguide coupler using three or more wave modes |
| 04/28/1987 | US4661783 Free electron and cyclotron resonance distributed feedback lasers and masers |
| 04/28/1987 | US4661744 Electromagnetic energy generators having resonating cavity with reflecting zones |
| 04/21/1987 | CA1220862A1 Velocity tapering of comb-quad traveling-wave tubes |
| 04/01/1987 | EP0144317B1 Grid structure for certain plural mode electron guns |
| 03/18/1987 | EP0214611A2 Anode assembly of magnetron and method of manufacturing the same |
| 03/17/1987 | US4651057 Standing-wave accelerator |
| 02/17/1987 | US4644225 Magnetron |
| 02/03/1987 | US4641103 Microwave electron gun |
| 01/27/1987 | US4639642 Sphericon |
| 01/20/1987 | CA1216902A1 Multidiameter cavity for reduced mode competition in gyrotron oscillator |
| 01/13/1987 | US4636689 Microwave propagation mode transformer |
| 01/13/1987 | US4636688 Gyrotron device |
| 01/06/1987 | US4634929 Broadband multipactor device |
| 12/23/1986 | US4631447 IREB converter to AC pulses |
| 11/18/1986 | CA1214272A1 Density modulated electron beam tube with enhanced gain |
| 11/04/1986 | US4621219 Electron beam scrambler |
| 11/04/1986 | US4621218 Transverse field interaction multibeam amplifier |
| 10/21/1986 | CA1213055A1 Travelling wave tube arrangements |
| 10/14/1986 | US4617493 Collective interaction klystron |
| 09/16/1986 | US4612476 Broadband transverse field interaction continuous beam amplifier |
| 09/09/1986 | US4611149 Beam tube with density plus velocity modulation |
| 08/26/1986 | US4608520 Cathode driven crossed-field amplifier |
| 07/22/1986 | US4602190 Semiconductor multipactor device |
| 07/22/1986 | CA1208365A1 Electron tube with transverse cyclotron interaction |
| 06/24/1986 | US4596967 High power microwave generator |
| 05/27/1986 | US4591799 High power klystron amplifier for supplying a variable load |
| 05/14/1986 | EP0181214A1 Beam tube with density plus velocity modulation |
| 05/13/1986 | US4588965 Coaxial magnetron using the TE111 mode |
| 05/13/1986 | CA1204512A1 Gridded electron power tube |
| 04/29/1986 | US4585965 Radio electric wave generator for ultra-high frequencies |
| 04/16/1986 | EP0177668A1 Device for directing an electron beam |
| 04/15/1986 | US4583025 Autogenerator of beams of charged particles |