- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 25/20 - Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator having special arrangements in the space between resonators, e.g. resistive-wall amplifier tube, space-charge amplifier tube, velocity-jump tube
Patent holdings for IPC class H01J 25/20
Total number of patents in this class: 2
10-year publication summary
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
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|---|---|---|
| Korea Electrotechnology Research Institute | 411 |
1 |
| Canon Electron Tubes & Devices Co., Ltd. | 154 |
1 |
| Other owners | 0 |