- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 3/21 - Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
Patent holdings for IPC class H03F 3/21
Total number of patents in this class: 2948
10-year publication summary
|
289
|
325
|
334
|
346
|
234
|
202
|
200
|
181
|
126
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25252 |
375 |
| Skyworks Solutions, Inc. | 3854 |
275 |
| Qorvo US, Inc. | 2329 |
153 |
| Qualcomm Incorporated | 88827 |
137 |
| NXP USA, Inc. | 4394 |
118 |
| Psemi Corporation | 1071 |
90 |
| Samsung Electronics Co., Ltd. | 151485 |
73 |
| MACOM Technology Solutions Holdings, Inc. | 849 |
50 |
| Samsung Electro-mechanics Co., Ltd. | 5756 |
49 |
| Texas Instruments Incorporated | 19542 |
48 |
| Mitsubishi Electric Corporation | 47352 |
45 |
| Intel Corporation | 46569 |
43 |
| Ericsson | 22156 |
41 |
| Huawei Technologies Co., Ltd. | 118145 |
36 |
| Lansus Technologies Inc. | 280 |
36 |
| Avago Technologies International Sales Pte. Limited | 8631 |
31 |
| Mediatek Inc. | 5314 |
29 |
| Infineon Technologies AG | 8319 |
27 |
| Toshiba Corporation | 12537 |
26 |
| SnapTrack, Inc. | 545 |
26 |
| Other owners | 1240 |