- 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: 2686
10-year publication summary
|
308
|
348
|
289
|
325
|
336
|
347
|
231
|
187
|
190
|
54
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 22355 |
321 |
| Skyworks Solutions, Inc. | 3450 |
264 |
| Qorvo US, Inc. | 2018 |
138 |
| Qualcomm Incorporated | 76576 |
121 |
| NXP USA, Inc. | 4155 |
109 |
| Psemi Corporation | 898 |
85 |
| Samsung Electronics Co., Ltd. | 131630 |
65 |
| Samsung Electro-mechanics Co., Ltd. | 4798 |
46 |
| MACOM Technology Solutions Holdings, Inc. | 784 |
46 |
| Ericsson | 20417 |
43 |
| Intel Corporation | 45621 |
41 |
| Texas Instruments Incorporated | 19376 |
41 |
| Mitsubishi Electric Corporation | 43934 |
39 |
| Avago Technologies International Sales Pte. Limited | 9260 |
31 |
| Huawei Technologies Co., Ltd. | 100781 |
29 |
| Mediatek Inc. | 4584 |
29 |
| Lansus Technologies Inc. | 160 |
27 |
| SnapTrack, Inc. | 650 |
27 |
| Toshiba Corporation | 12017 |
26 |
| Fujitsu Limited | 19265 |
26 |
| Other owners | 1132 |