- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 3/187 - Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only in integrated circuits
Patent holdings for IPC class H03F 3/187
Total number of patents in this class: 388
10-year publication summary
|
28
|
48
|
63
|
52
|
36
|
22
|
23
|
20
|
19
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cirrus Logic, Inc. | 1775 |
69 |
| Cirrus Logic International Semiconductor Ltd. | 880 |
31 |
| Qualcomm Incorporated | 85833 |
24 |
| Skyworks Solutions, Inc. | 3728 |
13 |
| Infineon Technologies AG | 8224 |
12 |
| Texas Instruments Incorporated | 19443 |
10 |
| Rohm Co., Ltd. | 6471 |
10 |
| Murata Manufacturing Co., Ltd. | 24603 |
7 |
| STMicroelectronics S.r.l. | 3607 |
7 |
| STMicroelectronics (Shenzhen) R&D Co. Ltd | 109 |
7 |
| Semiconductor Components Industries, L.L.C. | 5255 |
6 |
| ams AG | 776 |
6 |
| ST-Ericsson SA | 530 |
6 |
| Samsung Electronics Co., Ltd. | 146811 |
5 |
| Avnera Corporation | 115 |
5 |
| InvenSense, Inc. | 1051 |
5 |
| Synaptics Incorporated | 1799 |
5 |
| Elite Semiconductor Microelectronics Technology Inc. | 134 |
5 |
| Robert Bosch GmbH | 42705 |
4 |
| Yamaha Corporation | 4080 |
4 |
| Other owners | 147 |