- 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: 1771
10-year publication summary
|
107
|
124
|
160
|
164
|
106
|
88
|
86
|
63
|
58
|
35
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25893 |
178 |
| Qualcomm Incorporated | 93172 |
89 |
| Mitsubishi Electric Corporation | 48287 |
89 |
| Skyworks Solutions, Inc. | 3980 |
85 |
| Qorvo US, Inc. | 2418 |
80 |
| NXP USA, Inc. | 4407 |
48 |
| Ericsson | 22995 |
46 |
| NEC Corporation | 37312 |
39 |
| Texas Instruments Incorporated | 19639 |
27 |
| Samsung Electronics Co., Ltd. | 158842 |
26 |
| Apple Inc. | 59177 |
21 |
| Intel Corporation | 46449 |
20 |
| MACOM Technology Solutions Holdings, Inc. | 861 |
20 |
| Panasonic Corporation | 18751 |
19 |
| Morgan Stanley Senior Funding, Inc., AS Agent | 1417 |
19 |
| Huawei Technologies Co., Ltd. | 124630 |
18 |
| Sumitomo Electric Industries, Ltd. | 16345 |
17 |
| Analog Devices, Inc. | 3321 |
16 |
| Nippon Telegraph and Telephone Corporation | 15933 |
16 |
| BioSig Technologies, Inc. | 44 |
16 |
| Other owners | 882 |