- 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: 637
10-year publication summary
42
|
64
|
68
|
71
|
64
|
49
|
52
|
37
|
32
|
13
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Qualcomm Incorporated | 76576 |
36 |
Skyworks Solutions, Inc. | 3450 |
33 |
Cirrus Logic, Inc. | 1719 |
17 |
Texas Instruments Incorporated | 19376 |
14 |
Mediatek Inc. | 4584 |
13 |
Analog Devices, Inc. | 3475 |
13 |
Murata Manufacturing Co., Ltd. | 22355 |
12 |
Mitsubishi Electric Corporation | 43934 |
11 |
Qorvo US, Inc. | 2018 |
11 |
ams AG | 807 |
10 |
Quantalrf AG | 26 |
10 |
Samsung Electronics Co., Ltd. | 131630 |
9 |
Ericsson | 20417 |
9 |
Intel Corporation | 45621 |
9 |
Semiconductor Components Industries, L.L.C. | 5345 |
9 |
STMicroelectronics S.r.l. | 3693 |
8 |
Nippon Telegraph and Telephone Corporation | 14195 |
8 |
Marvell Asia PTE, Ltd. | 6841 |
8 |
Cavium International | 5549 |
8 |
Sony Semiconductor Solutions Corporation | 8770 |
7 |
Other owners | 382 |