- All sections
- H - Electricity
- H03G - Control of amplification
- H03G 3/32 - Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
Patent holdings for IPC class H03G 3/32
Total number of patents in this class: 584
10-year publication summary
|
54
|
49
|
70
|
70
|
49
|
40
|
35
|
33
|
21
|
17
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dolby Laboratories Licensing Corporation | 4107 |
71 |
| Bose Corporation | 2971 |
29 |
| Samsung Electronics Co., Ltd. | 144675 |
15 |
| Voyetra Turtle Beach, Inc. | 509 |
14 |
| Sonos, Inc. | 2565 |
12 |
| Harman International Industries, Incorporated | 2618 |
11 |
| DISH Technologies L.L.C. | 1606 |
11 |
| Huawei Technologies Co., Ltd. | 111449 |
9 |
| Amazon Technologies, Inc. | 26528 |
9 |
| Adeia Guides Inc. | 3215 |
8 |
| ST Portfolio Holdings, LLC | 242 |
8 |
| Qualcomm Incorporated | 84760 |
7 |
| Sony Corporation | 31124 |
6 |
| Toyota Motor Corporation | 31693 |
6 |
| Motorola Solutions, Inc. | 4394 |
6 |
| Motorola Mobility LLC | 2644 |
6 |
| Dolby International AB | 1035 |
6 |
| Physio-Control, Inc. | 426 |
6 |
| Apple Inc. | 54577 |
5 |
| International Business Machines Corporation | 61144 |
5 |
| Other owners | 334 |