- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 1/56 - Modifications of input or output impedances, not otherwise provided for
Patent holdings for IPC class H03F 1/56
Total number of patents in this class: 2727
10-year publication summary
|
239
|
237
|
290
|
285
|
266
|
242
|
235
|
270
|
247
|
148
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 24526 |
343 |
| Skyworks Solutions, Inc. | 3722 |
303 |
| Qualcomm Incorporated | 85322 |
147 |
| Psemi Corporation | 1016 |
127 |
| NXP USA, Inc. | 4299 |
122 |
| Qorvo US, Inc. | 2217 |
93 |
| MACOM Technology Solutions Holdings, Inc. | 822 |
74 |
| Samsung Electronics Co., Ltd. | 146092 |
68 |
| Mitsubishi Electric Corporation | 46093 |
54 |
| Huawei Technologies Co., Ltd. | 112438 |
46 |
| Lansus Technologies Inc. | 257 |
39 |
| Ampleon Netherlands B.V. | 108 |
37 |
| Ericsson | 21747 |
30 |
| Telefonaktiebolaget LM Ericsson (publ) | 27928 |
29 |
| Apple Inc. | 54844 |
28 |
| RichWave Technology Corp. | 284 |
27 |
| Sumitomo Electric Industries, Ltd. | 15483 |
26 |
| Toshiba Corporation | 12336 |
25 |
| Infineon Technologies AG | 8221 |
25 |
| Samsung Electro-mechanics Co., Ltd. | 5614 |
24 |
| Other owners | 1060 |