- 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: 337
10-year publication summary
|
33
|
33
|
22
|
21
|
21
|
28
|
36
|
37
|
35
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 112438 |
23 |
| Qualcomm Incorporated | 85322 |
21 |
| Mitsubishi Electric Corporation | 46093 |
14 |
| NXP USA, Inc. | 4299 |
13 |
| MACOM Technology Solutions Holdings, Inc. | 822 |
12 |
| Murata Manufacturing Co., Ltd. | 24526 |
10 |
| Analog Devices, Inc. | 3376 |
10 |
| Qorvo US, Inc. | 2217 |
10 |
| ROHDE & Schwarz GmbH & Co. KG | 1930 |
9 |
| Texas Instruments Incorporated | 19470 |
8 |
| International Business Machines Corporation | 61228 |
7 |
| NEC Corporation | 35652 |
5 |
| Mediatek Inc. | 5113 |
5 |
| Nippon Telegraph and Telephone Corporation | 17341 |
5 |
| Lansus Technologies Inc. | 257 |
5 |
| Telefonaktiebolaget LM Ericsson (publ) | 27928 |
5 |
| Ericsson | 21747 |
4 |
| Intel Corporation | 46962 |
4 |
| Fujitsu Limited | 18351 |
4 |
| Northrop Grumman Systems Corporation | 2939 |
4 |
| Other owners | 159 |