- All sections
- H - Electricity
- H03J - Tuning resonant circuits; selecting resonant circuits
- H03J 9/04 - Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification using ultrasonic, sonic or infrasonic waves
Patent holdings for IPC class H03J 9/04
Total number of patents in this class: 5
10-year publication summary
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1
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0
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0
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1
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0
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2
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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
|
|---|---|---|
| Fresenius Medical Care Holdings, Inc. | 1354 |
2 |
| BlackBerry Limited | 5958 |
1 |
| Yamaha Corporation | 4054 |
1 |
| Tencent Technology (Shenzhen) Company Limited | 12951 |
1 |
| Other owners | 0 |