- 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: 3013
10-year publication summary
|
289
|
325
|
336
|
347
|
234
|
202
|
205
|
183
|
127
|
76
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25758 |
377 |
| Skyworks Solutions, Inc. | 3953 |
278 |
| Qorvo US, Inc. | 2401 |
154 |
| Qualcomm Incorporated | 92416 |
137 |
| NXP USA, Inc. | 4399 |
120 |
| Psemi Corporation | 1082 |
90 |
| Samsung Electronics Co., Ltd. | 157946 |
84 |
| Texas Instruments Incorporated | 19653 |
50 |
| MACOM Technology Solutions Holdings, Inc. | 862 |
50 |
| Samsung Electro-mechanics Co., Ltd. | 6091 |
49 |
| Mitsubishi Electric Corporation | 48048 |
46 |
| Intel Corporation | 47122 |
43 |
| Ericsson | 22785 |
42 |
| Lansus Technologies Inc. | 308 |
42 |
| Huawei Technologies Co., Ltd. | 123543 |
37 |
| Avago Technologies International Sales Pte. Limited | 8552 |
31 |
| Mediatek Inc. | 5340 |
29 |
| Toshiba Corporation | 12569 |
27 |
| Infineon Technologies AG | 8402 |
27 |
| SnapTrack, Inc. | 518 |
26 |
| Other owners | 1274 |