- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 1/42 - Modifications of amplifiers to extend the bandwidth
Patent holdings for IPC class H03F 1/42
Total number of patents in this class: 334
10-year publication summary
|
33
|
33
|
22
|
21
|
21
|
28
|
35
|
37
|
34
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 110995 |
23 |
| Qualcomm Incorporated | 84501 |
21 |
| Mitsubishi Electric Corporation | 45811 |
14 |
| NXP USA, Inc. | 4273 |
13 |
| MACOM Technology Solutions Holdings, Inc. | 817 |
12 |
| Murata Manufacturing Co., Ltd. | 24342 |
10 |
| Analog Devices, Inc. | 3391 |
10 |
| Qorvo US, Inc. | 2194 |
10 |
| ROHDE & Schwarz GmbH & Co. KG | 1913 |
9 |
| Texas Instruments Incorporated | 19487 |
8 |
| International Business Machines Corporation | 61023 |
7 |
| NEC Corporation | 35351 |
5 |
| Mediatek Inc. | 5050 |
5 |
| Nippon Telegraph and Telephone Corporation | 17157 |
5 |
| Lansus Technologies Inc. | 250 |
5 |
| Telefonaktiebolaget LM Ericsson (publ) | 27794 |
5 |
| Ericsson | 21593 |
4 |
| Fujitsu Limited | 18356 |
4 |
| Northrop Grumman Systems Corporation | 2950 |
4 |
| ZTE Corporation | 42015 |
4 |
| Other owners | 156 |