- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 25/04 - Tubes having one or more resonators, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly density modulation, e.g. Haeff tube
Patent holdings for IPC class H01J 25/04
Total number of patents in this class: 9
10-year publication summary
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0
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0
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1
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2
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0
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1
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0
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0
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0
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0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Thales | 1854 |
4 |
| Thales SA | 2318 |
1 |
| Georgia Tech Research Corporation | 2453 |
1 |
| Communications & Power Industries, Inc. | 3 |
1 |
| Consorzio di Ricerca Hypatia | 3 |
1 |
| Communication & Power Industries, Inc. | 1 |
1 |
| Other owners | 0 |