- 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: 2399
10-year publication summary
|
172
|
239
|
237
|
290
|
285
|
266
|
239
|
214
|
264
|
75
|
| 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 |
302 |
| Skyworks Solutions, Inc. | 3450 |
279 |
| Qualcomm Incorporated | 76576 |
124 |
| Psemi Corporation | 898 |
118 |
| NXP USA, Inc. | 4155 |
112 |
| Qorvo US, Inc. | 2018 |
83 |
| MACOM Technology Solutions Holdings, Inc. | 784 |
63 |
| Samsung Electronics Co., Ltd. | 131630 |
54 |
| Mitsubishi Electric Corporation | 43934 |
47 |
| Huawei Technologies Co., Ltd. | 100781 |
36 |
| Ampleon Netherlands B.V. | 101 |
31 |
| Lansus Technologies Inc. | 160 |
29 |
| Ericsson | 20417 |
28 |
| Infineon Technologies AG | 8189 |
25 |
| Toshiba Corporation | 12017 |
24 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
23 |
| Samsung Electro-mechanics Co., Ltd. | 4798 |
21 |
| RichWave Technology Corp. | 244 |
20 |
| Apple Inc. | 50209 |
19 |
| Smarter Microelectronics (guang Zhou) Co., Ltd. | 109 |
19 |
| Other owners | 942 |