- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 1/04 - Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
Patent holdings for IPC class H03F 1/04
Total number of patents in this class: 23
10-year publication summary
|
2
|
2
|
4
|
0
|
2
|
2
|
0
|
0
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Axiro Semiconductor Inc. | 104 |
3 |
| General Electric Company | 13966 |
2 |
| Qualcomm Incorporated | 93172 |
1 |
| Toshiba Corporation | 12660 |
1 |
| Panasonic Corporation | 18751 |
1 |
| Seiko Epson Corporation | 20406 |
1 |
| Huawei Technologies Co., Ltd. | 124630 |
1 |
| NPX B.V. | 2837 |
1 |
| Thales SA | 2396 |
1 |
| Cirrus Logic, Inc. | 1801 |
1 |
| Dialog Semiconductor B.V. | 98 |
1 |
| Echowell Electronic Co., Ltd. | 12 |
1 |
| Infineon Technologies Americas Corp. | 1944 |
1 |
| Keithley Instruments, Inc. | 43 |
1 |
| STMicroelectronics International N.V. | 4230 |
1 |
| Western Electric Export Corporation | 19 |
1 |
| Psemi Corporation | 1086 |
1 |
| Goodix Technology (HK) Company Limited | 94 |
1 |
| Caes Systems Holdings LLC | 17 |
1 |
| Caes Systems LLC | 55 |
1 |
| Other owners | 0 |