- 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: 545
10-year publication summary
46
|
54
|
49
|
70
|
70
|
49
|
40
|
35
|
30
|
8
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Dolby Laboratories Licensing Corporation | 3883 |
63 |
Bose Corporation | 2880 |
27 |
Samsung Electronics Co., Ltd. | 131630 |
15 |
Sonos, Inc. | 2274 |
12 |
Voyetra Turtle Beach, Inc. | 461 |
12 |
DISH Technologies L.L.C. | 1666 |
11 |
Huawei Technologies Co., Ltd. | 100781 |
9 |
Harman International Industries, Incorporated | 2443 |
9 |
Rovi Guides, Inc. | 3236 |
9 |
Staton Techiya, LLC | 254 |
8 |
Qualcomm Incorporated | 76576 |
7 |
Amazon Technologies, Inc. | 24422 |
7 |
Sony Corporation | 32931 |
6 |
Motorola Mobility LLC | 2493 |
6 |
Dolby International AB | 1076 |
6 |
Physio-Control, Inc. | 420 |
6 |
International Business Machines Corporation | 60644 |
5 |
Beijing Zhigu Rui Tuo Tech Co., Ltd | 407 |
5 |
DTS, Inc. | 381 |
5 |
Google LLC | 38759 |
5 |
Other owners | 312 |