- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 3/38 - Dc amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers
Patent holdings for IPC class H03F 3/38
Total number of patents in this class: 348
10-year publication summary
|
14
|
14
|
16
|
21
|
23
|
19
|
12
|
13
|
5
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Texas Instruments Incorporated | 19376 |
28 |
| Cirrus Logic, Inc. | 1719 |
19 |
| Samsung Electronics Co., Ltd. | 131630 |
8 |
| Infineon Technologies AG | 8189 |
7 |
| Qualcomm Incorporated | 76576 |
6 |
| Ericsson | 20417 |
6 |
| Medtronic, Inc. | 9964 |
6 |
| Intersil Americas LLC | 462 |
6 |
| Seiko Epson Corporation | 18724 |
5 |
| National Semiconductor Corporation | 1411 |
5 |
| Yamaha Corporation | 4054 |
5 |
| Realtek Semiconductor Corp. | 3028 |
5 |
| Chartoleaux KG Limited Liability Company | 33 |
5 |
| Marvell Asia PTE, Ltd. | 6841 |
5 |
| Cavium International | 5549 |
5 |
| Avago Technologies International Sales Pte. Limited | 9260 |
5 |
| Elite Semiconductor Memory Technology Inc. | 165 |
4 |
| Infineon Technologies Americas Corp. | 768 |
4 |
| Maxim Integrated Products, Inc. | 1041 |
4 |
| Panasonic Corporation | 20786 |
3 |
| Other owners | 207 |