- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 31/02 - Cathode-ray tubesElectron-beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
Patent holdings for IPC class H01J 31/02
Total number of patents in this class: 2
10-year publication summary
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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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0
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0
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0
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Korea University Research and Business Foundation | 2939 |
1 |
| Varian Medical Systems, Inc. | 860 |
1 |
| Other owners | 0 |