- All sections
- H - Electricity
- H03G - Control of amplification
- H03G 9/00 - Combinations of two or more types of control, e.g. gain control and tone control
Patent holdings for IPC class H03G 9/00
Total number of patents in this class: 337
10-year publication summary
|
27
|
30
|
38
|
30
|
39
|
19
|
26
|
9
|
6
|
4
|
| 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 |
76 |
| Dolby International AB | 1076 |
18 |
| Bongiovi Acoustics LLC. | 92 |
12 |
| Yamaha Corporation | 4054 |
11 |
| Sony Corporation | 32931 |
9 |
| Bose Corporation | 2880 |
8 |
| DTS, Inc. | 381 |
8 |
| Harman International Industries, Incorporated | 2443 |
7 |
| Physio-Control, Inc. | 420 |
6 |
| Samsung Electronics Co., Ltd. | 131630 |
5 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4569 |
5 |
| Cirrus Logic, Inc. | 1719 |
5 |
| Harman Becker Automotive Systems GmbH | 645 |
5 |
| Dolby International AB | 422 |
5 |
| Warner Bros. Entertainment Inc. | 2271 |
4 |
| Creative Technology Ltd | 610 |
4 |
| Mimi Hearing Technologies GmbH | 57 |
4 |
| Apple Inc. | 50209 |
3 |
| Texas Instruments Incorporated | 19376 |
3 |
| HTC Corporation | 2219 |
3 |
| Other owners | 136 |