- All sections
- H - Electricity
- H03B - Generation of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching mannergeneration of noise by such circuits
- H03B 9/02 - Generation of oscillations using transit-time effects using discharge tubes using a retarding-field tube
Patent holdings for IPC class H03B 9/02
Total number of patents in this class: 3
10-year publication summary
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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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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
|
|---|---|---|
| Seiko Epson Corporation | 19398 |
1 |
| Korea Electrotechnology Research Institute | 472 |
1 |
| Manhattan Technologies, LLC | 2 |
1 |
| Other owners | 0 |