- 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: 977
10-year publication summary
|
96
|
103
|
70
|
125
|
85
|
93
|
68
|
73
|
71
|
23
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qualcomm Incorporated | 76576 |
138 |
| Psemi Corporation | 898 |
137 |
| Skyworks Solutions, Inc. | 3450 |
121 |
| Murata Manufacturing Co., Ltd. | 22355 |
47 |
| Qorvo US, Inc. | 2018 |
34 |
| Texas Instruments Incorporated | 19376 |
26 |
| Mitsubishi Electric Corporation | 43934 |
17 |
| Intel Corporation | 45621 |
15 |
| MACOM Technology Solutions Holdings, Inc. | 784 |
15 |
| Samsung Electro-mechanics Co., Ltd. | 4798 |
14 |
| Avago Technologies International Sales Pte. Limited | 9260 |
14 |
| Samsung Electronics Co., Ltd. | 131630 |
11 |
| Toshiba Corporation | 12017 |
11 |
| Ericsson | 20417 |
11 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
10 |
| Raytheon Company | 8535 |
10 |
| Quantalrf AG | 26 |
10 |
| Realtek Semiconductor Corp. | 3028 |
9 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
9 |
| Mediatek Inc. | 4584 |
8 |
| Other owners | 310 |