- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 1/33 - Modifications of amplifiers to reduce non-linear distortion in discharge-tube amplifiers
Patent holdings for IPC class H03F 1/33
Total number of patents in this class: 3
10-year publication summary
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1
|
0
|
0
|
1
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0
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0
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0
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1
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0
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Noritake Co., Limited | 272 |
1 |
| Noritake Itron Corporation | 27 |
1 |
| OHM Audio, LLC | 2 |
1 |
| Other owners | 0 |