- 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: 597
10-year publication summary
|
49
|
70
|
70
|
49
|
40
|
35
|
34
|
22
|
31
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dolby Laboratories Licensing Corporation | 4320 |
70 |
| Bose Corporation | 3092 |
30 |
| Samsung Electronics Co., Ltd. | 157719 |
15 |
| Voyetra Turtle Beach, Inc. | 526 |
15 |
| Harman International Industries, Incorporated | 2877 |
14 |
| Sonos, Inc. | 2859 |
14 |
| DISH Technologies L.L.C. | 1601 |
11 |
| Huawei Technologies Co., Ltd. | 123385 |
10 |
| Amazon Technologies, Inc. | 28087 |
10 |
| Adeia Guides Inc. | 3923 |
9 |
| Motorola Solutions, Inc. | 4583 |
8 |
| Qualcomm Incorporated | 92196 |
7 |
| Toyota Motor Corporation | 35772 |
7 |
| ST Portfolio Holdings, LLC | 221 |
7 |
| Apple Inc. | 58742 |
6 |
| Sony Corporation | 30181 |
6 |
| Motorola Mobility LLC | 2864 |
6 |
| Dolby International AB | 1027 |
6 |
| Physio-Control, Inc. | 442 |
6 |
| International Business Machines Corporation | 62634 |
5 |
| Other owners | 335 |