- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 3/38 - DC amplifiers with modulator at input and demodulator at outputModulators or demodulators specially adapted for use in such amplifiers
Patent holdings for IPC class H03F 3/38
Total number of patents in this class: 318
10-year publication summary
|
14
|
16
|
21
|
23
|
19
|
12
|
13
|
7
|
3
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Texas Instruments Incorporated | 19459 |
26 |
| Cirrus Logic, Inc. | 1793 |
18 |
| Samsung Electronics Co., Ltd. | 148173 |
8 |
| Infineon Technologies AG | 8266 |
7 |
| Qualcomm Incorporated | 87067 |
6 |
| Ericsson | 21932 |
6 |
| Medtronic, Inc. | 9831 |
6 |
| Elite Semiconductor Microelectronics Technology Inc. | 137 |
6 |
| Seiko Epson Corporation | 19673 |
5 |
| Realtek Semiconductor Corp. | 3328 |
5 |
| Marvell Asia PTE, Ltd. | 6439 |
5 |
| Cavium International | 4948 |
5 |
| Avago Technologies International Sales Pte. Limited | 8679 |
5 |
| National Semiconductor Corporation | 1018 |
4 |
| Intersil Americas LLC | 410 |
4 |
| Maxim Integrated Products, Inc. | 1035 |
4 |
| Intel Corporation | 46937 |
3 |
| Texas Instruments Japan, Ltd. | 1656 |
3 |
| NPX B.V. | 2591 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 32139 |
3 |
| Other owners | 186 |