- 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: 1154
10-year publication summary
|
70
|
125
|
85
|
93
|
72
|
82
|
91
|
84
|
60
|
48
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Psemi Corporation | 1086 |
178 |
| Qualcomm Incorporated | 93712 |
158 |
| Skyworks Solutions, Inc. | 3989 |
137 |
| Murata Manufacturing Co., Ltd. | 25981 |
61 |
| Qorvo US, Inc. | 2433 |
45 |
| Texas Instruments Incorporated | 19622 |
29 |
| MACOM Technology Solutions Holdings, Inc. | 862 |
18 |
| Mitsubishi Electric Corporation | 48409 |
17 |
| Samsung Electronics Co., Ltd. | 159298 |
16 |
| Intel Corporation | 46313 |
16 |
| Realtek Semiconductor Corp. | 3525 |
15 |
| Samsung Electro-mechanics Co., Ltd. | 6178 |
14 |
| Raytheon Company | 8447 |
14 |
| Avago Technologies International Sales Pte. Limited | 8525 |
14 |
| Toshiba Corporation | 12732 |
11 |
| Ericsson | 23107 |
11 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 49027 |
11 |
| Mediatek Inc. | 5544 |
11 |
| Telefonaktiebolaget LM Ericsson (publ) | 29000 |
10 |
| Quantalrf AG | 28 |
10 |
| Other owners | 358 |