- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 1/34 - Negative-feedback-circuit arrangements with or without positive feedback
Patent holdings for IPC class H03F 1/34
Total number of patents in this class: 681
10-year publication summary
|
68
|
71
|
64
|
49
|
52
|
46
|
36
|
35
|
29
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qualcomm Incorporated | 91997 |
43 |
| Skyworks Solutions, Inc. | 3947 |
38 |
| Cirrus Logic, Inc. | 1803 |
18 |
| Quantalrf AG | 28 |
17 |
| Texas Instruments Incorporated | 19663 |
16 |
| Mediatek Inc. | 5316 |
14 |
| Analog Devices, Inc. | 3321 |
14 |
| Murata Manufacturing Co., Ltd. | 25722 |
13 |
| Samsung Electronics Co., Ltd. | 157557 |
11 |
| Mitsubishi Electric Corporation | 47971 |
11 |
| Qorvo US, Inc. | 2394 |
11 |
| ams AG | 758 |
10 |
| Ericsson | 22660 |
9 |
| Intel Corporation | 47102 |
9 |
| Semiconductor Components Industries, L.L.C. | 5264 |
8 |
| Nippon Telegraph and Telephone Corporation | 15922 |
8 |
| Sony Semiconductor Solutions Corporation | 11551 |
8 |
| Marvell Asia PTE, Ltd. | 6313 |
8 |
| Cavium International | 4672 |
8 |
| The Regents of the University of California | 20720 |
6 |
| Other owners | 401 |