- All sections
- H - Electricity
- H03G - Control of amplification
- H03G 9/06 - Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes for gain control and tone control
Patent holdings for IPC class H03G 9/06
Total number of patents in this class: 4
10-year publication summary
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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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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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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dolby International AB | 1076 |
1 |
| ETI Sound Systems, Inc. | 23 |
1 |
| Inmusic Brands, Inc. | 229 |
1 |
| Sharp Kabushiki Kaisha | 18957 |
1 |
| Other owners | 0 |