- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 13/00 - Amplifiers using amplifying element consisting of two mechanically- or acoustically-coupled transducers, e.g. telephone-microphone amplifier
Patent holdings for IPC class H03F 13/00
Total number of patents in this class: 14
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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6
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1
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1
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1
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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
|
|---|---|---|
| Avnera Corporation | 116 |
4 |
| Cirrus Logic, Inc. | 1719 |
2 |
| STMicroelectronics S.r.l. | 3693 |
1 |
| ams AG | 807 |
1 |
| Artium Technologies, Inc. | 13 |
1 |
| Crocus Technology SA | 64 |
1 |
| Entropic Communications, LLC | 289 |
1 |
| National Technology & Engineering Solutions of Sandia, LLC | 1851 |
1 |
| Alcatel Lucent | 4720 |
1 |
| d&b audiotechnik GmbH & Co. KG | 63 |
1 |
| Other owners | 0 |