- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 3/54 - Amplifiers using transit-time effect in tubes or semiconductor devices
Patent holdings for IPC class H03F 3/54
Total number of patents in this class: 15
10-year publication summary
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0
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2
|
2
|
4
|
1
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1
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1
|
1
|
1
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Elegant Mathematics LLC | 7 |
4 |
| Sumitomo Electric Industries, Ltd. | 14131 |
2 |
| Oxford University Innovation Limited | 1421 |
2 |
| Tesat-Spacecom GmbH & Co. KG | 68 |
2 |
| International Business Machines Corporation | 60644 |
1 |
| Thales SA | 2318 |
1 |
| Lancaster University Business Enterprises Limited | 42 |
1 |
| University of Lancaster | 48 |
1 |
| Daanaa Resolution Inc. | 13 |
1 |
| Other owners | 0 |