- All sections
- H - Electricity
- H03G - Control of amplification
- H03G 7/00 - Volume compression or expansion in amplifiers
Patent holdings for IPC class H03G 7/00
Total number of patents in this class: 601
10-year publication summary
|
64
|
59
|
60
|
56
|
44
|
39
|
19
|
28
|
19
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dolby Laboratories Licensing Corporation | 4096 |
78 |
| Dolby International AB | 1045 |
36 |
| Sonos, Inc. | 2497 |
32 |
| Apple Inc. | 53280 |
21 |
| Yamaha Corporation | 4079 |
17 |
| Bose Corporation | 2934 |
14 |
| Cirrus Logic, Inc. | 1747 |
13 |
| Dolby International AB | 577 |
13 |
| Bongiovi Acoustics LLC. | 80 |
12 |
| Harman International Industries, Incorporated | 2565 |
12 |
| Sony Corporation | 31467 |
9 |
| Texas Instruments Incorporated | 19457 |
9 |
| DISH Technologies L.L.C. | 1666 |
9 |
| Samsung Electronics Co., Ltd. | 140622 |
8 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4839 |
7 |
| DTS, Inc. | 382 |
7 |
| Bitwave Private Limited | 49 |
6 |
| Devialet | 146 |
6 |
| Gracenote, Inc. | 449 |
6 |
| Harman Becker Automotive Systems GmbH | 643 |
6 |
| Other owners | 280 |