- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 1/22 - Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of cascode coupling, i.e. earthed cathode or emitter stage followed by earthed grid or base stage respectively
Patent holdings for IPC class H03F 1/22
Total number of patents in this class: 1061
10-year publication summary
|
103
|
70
|
125
|
85
|
93
|
72
|
79
|
79
|
72
|
33
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Psemi Corporation | 992 |
161 |
| Qualcomm Incorporated | 84847 |
147 |
| Skyworks Solutions, Inc. | 3708 |
133 |
| Murata Manufacturing Co., Ltd. | 24444 |
53 |
| Qorvo US, Inc. | 2203 |
39 |
| Texas Instruments Incorporated | 19494 |
28 |
| Mitsubishi Electric Corporation | 45946 |
17 |
| Intel Corporation | 46893 |
16 |
| MACOM Technology Solutions Holdings, Inc. | 820 |
15 |
| Samsung Electronics Co., Ltd. | 145025 |
14 |
| Samsung Electro-mechanics Co., Ltd. | 5593 |
14 |
| Avago Technologies International Sales Pte. Limited | 8786 |
14 |
| Realtek Semiconductor Corp. | 3276 |
13 |
| Raytheon Company | 8397 |
12 |
| Toshiba Corporation | 12317 |
11 |
| Ericsson | 21674 |
11 |
| Quantalrf AG | 27 |
10 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 42389 |
9 |
| Huawei Technologies Co., Ltd. | 111764 |
9 |
| Telefonaktiebolaget LM Ericsson (publ) | 27858 |
9 |
| Other owners | 326 |