- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 3/68 - Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
Patent holdings for IPC class H03F 3/68
Total number of patents in this class: 1762
10-year publication summary
|
140
|
104
|
123
|
156
|
158
|
103
|
85
|
80
|
60
|
54
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25037 |
168 |
| Qualcomm Incorporated | 87874 |
88 |
| Skyworks Solutions, Inc. | 3817 |
87 |
| Mitsubishi Electric Corporation | 47014 |
86 |
| Qorvo US, Inc. | 2298 |
81 |
| Ericsson | 22018 |
46 |
| NXP USA, Inc. | 4359 |
46 |
| NEC Corporation | 36308 |
41 |
| Texas Instruments Incorporated | 19493 |
26 |
| Samsung Electronics Co., Ltd. | 149362 |
24 |
| Apple Inc. | 56547 |
21 |
| Intel Corporation | 46487 |
20 |
| MACOM Technology Solutions Holdings, Inc. | 834 |
20 |
| Panasonic Corporation | 19937 |
19 |
| Huawei Technologies Co., Ltd. | 116134 |
19 |
| Morgan Stanley Senior Funding, Inc., AS Agent | 1532 |
19 |
| Sumitomo Electric Industries, Ltd. | 15802 |
16 |
| Analog Devices, Inc. | 3361 |
16 |
| Nippon Telegraph and Telephone Corporation | 16254 |
16 |
| Psemi Corporation | 1051 |
16 |
| Other owners | 887 |