- All sections
- H - Electricity
- H03G - Control of amplification
- H03G 3/24 - Control dependent upon ambient noise level or sound level
Patent holdings for IPC class H03G 3/24
Total number of patents in this class: 63
10-year publication summary
|
6
|
4
|
4
|
6
|
7
|
15
|
8
|
6
|
3
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Roku, Inc. | 1151 |
7 |
| Physio-Control, Inc. | 420 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
3 |
| E.F. Johnson Company | 64 |
3 |
| Samsung Electronics Co., Ltd. | 131630 |
2 |
| Nokia Technologies Oy | 15057 |
2 |
| Dolby Laboratories Licensing Corporation | 3883 |
2 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 18739 |
2 |
| Harman Becker Automotive Systems GmbH | 645 |
2 |
| Shure Acquisition Holdings, Inc. | 449 |
2 |
| Starkey Laboratories, Inc. | 1160 |
2 |
| Apple Inc. | 50209 |
1 |
| Qualcomm Incorporated | 76576 |
1 |
| International Business Machines Corporation | 60644 |
1 |
| GM Global Technology Operations LLC | 13620 |
1 |
| Ford Global Technologies, LLC | 19702 |
1 |
| Continental Automotive Systems, Inc. | 1163 |
1 |
| Motorola Mobility LLC | 2493 |
1 |
| The Invention Science Fund I, LLC | 189 |
1 |
| Adaptive Sound Technologies, Inc. | 17 |
1 |
| Other owners | 21 |