- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 17/54 - Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes
Patent holdings for IPC class H01J 17/54
Total number of patents in this class: 3
10-year publication summary
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0
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0
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0
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0
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0
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0
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3
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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
|
|---|---|---|
| General Electric Company | 18133 |
2 |
| Modern Electron, Inc. | 40 |
1 |
| Other owners | 0 |