- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 3/387 - DC amplifiers with modulator at input and demodulator at outputModulators or demodulators specially adapted for use in such amplifiers with semiconductor devices only
Patent holdings for IPC class H03F 3/387
Total number of patents in this class: 108
10-year publication summary
|
9
|
14
|
11
|
8
|
10
|
12
|
7
|
4
|
5
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Texas Instruments Incorporated | 19644 |
8 |
| Infineon Technologies AG | 8419 |
5 |
| Apple Inc. | 59241 |
4 |
| NPX B.V. | 2847 |
4 |
| Analog Devices, Inc. | 3318 |
4 |
| Heathkit Company, Inc. | 25 |
4 |
| Analog Devices International Unlimited Company | 2035 |
4 |
| Micron Technology, Inc. | 27793 |
3 |
| Medtronic, Inc. | 9810 |
3 |
| Maxim Integrated Products, Inc. | 1025 |
3 |
| 2pai Semiconductor Co., Limited | 4 |
3 |
| Samsung Electronics Co., Ltd. | 159029 |
2 |
| The Regents of the University of California | 20902 |
2 |
| Seiko Epson Corporation | 20446 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 34471 |
2 |
| Semiconductor Components Industries, L.L.C. | 5265 |
2 |
| STMicroelectronics S.r.l. | 3367 |
2 |
| Cirrus Logic, Inc. | 1798 |
2 |
| Boe Technology Group Co., Ltd. | 44653 |
2 |
| Aarhus Universitet | 450 |
2 |
| Other owners | 45 |