- 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: 1757
10-year publication summary
|
104
|
123
|
156
|
158
|
103
|
86
|
82
|
61
|
55
|
14
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25506 |
172 |
| Mitsubishi Electric Corporation | 47556 |
89 |
| Qualcomm Incorporated | 90109 |
88 |
| Skyworks Solutions, Inc. | 3884 |
86 |
| Qorvo US, Inc. | 2363 |
80 |
| NXP USA, Inc. | 4421 |
47 |
| Ericsson | 22283 |
46 |
| NEC Corporation | 36611 |
40 |
| Texas Instruments Incorporated | 19615 |
26 |
| Samsung Electronics Co., Ltd. | 153573 |
25 |
| Apple Inc. | 58049 |
21 |
| Intel Corporation | 46638 |
20 |
| MACOM Technology Solutions Holdings, Inc. | 846 |
20 |
| Panasonic Corporation | 19680 |
19 |
| Huawei Technologies Co., Ltd. | 119891 |
19 |
| Morgan Stanley Senior Funding, Inc., AS Agent | 1493 |
19 |
| Sumitomo Electric Industries, Ltd. | 16071 |
16 |
| Analog Devices, Inc. | 3341 |
16 |
| Nippon Telegraph and Telephone Corporation | 16002 |
16 |
| Psemi Corporation | 1087 |
16 |
| Other owners | 876 |