- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 5/14 - Applications of speech amplifiers
Patent holdings for IPC class H04M 5/14
Total number of patents in this class: 2
10-year publication summary
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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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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
|
|---|---|---|
| Huawei Device Co., Ltd. | 2758 |
1 |
| Sorenson IP Holdings, LLC | 287 |
1 |
| Other owners | 0 |