- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 3/22 - Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with tubes only
Patent holdings for IPC class H03F 3/22
Total number of patents in this class: 24
10-year publication summary
|
0
|
5
|
4
|
4
|
3
|
1
|
2
|
3
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 18133 |
4 |
| Qualcomm Incorporated | 76576 |
2 |
| Huawei Technologies Co., Ltd. | 100781 |
2 |
| ARRIS Enterprises LLC | 3432 |
2 |
| Real Analog, LLC | 2 |
2 |
| International Business Machines Corporation | 60644 |
1 |
| Microsoft Technology Licensing, LLC | 51439 |
1 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8635 |
1 |
| Advanced Fusion Systems LLC | 66 |
1 |
| Centre National d'Etudes Spatiales (C.N.E.S.) | 131 |
1 |
| Gibson Brands, Inc. | 76 |
1 |
| Google LLC | 38759 |
1 |
| ROHDE & Schwarz GmbH & Co. KG | 1831 |
1 |
| Tensorcom, Inc. | 64 |
1 |
| Tesat-Spacecom GmbH & Co. KG | 68 |
1 |
| Moriyama Meiboku Co., Ltd. | 3 |
1 |
| IBM Deutschland GmbH | 670 |
1 |
| Other owners | 0 |