- All sections
- H - Electricity
- H04S - Stereophonic systems
- H04S 1/00 - Two-channel systems
Patent holdings for IPC class H04S 1/00
Total number of patents in this class: 1627
10-year publication summary
|
130
|
135
|
148
|
172
|
158
|
139
|
149
|
134
|
112
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dolby Laboratories Licensing Corporation | 4063 |
82 |
| Huawei Technologies Co., Ltd. | 106915 |
67 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4810 |
60 |
| Sony Corporation | 31530 |
53 |
| Samsung Electronics Co., Ltd. | 139302 |
49 |
| Qualcomm Incorporated | 82009 |
47 |
| Dolby International AB | 1047 |
44 |
| Sonos, Inc. | 2466 |
41 |
| Apple Inc. | 52845 |
38 |
| Yamaha Corporation | 4071 |
38 |
| JVC Kenwood Corporation | 2921 |
36 |
| Nokia Technologies Oy | 16586 |
36 |
| Voyetra Turtle Beach, Inc. | 487 |
28 |
| Dolby International AB | 559 |
27 |
| Eight Khz, LLC | 41 |
25 |
| Sony Group Corporation | 12716 |
23 |
| Starkey Laboratories, Inc. | 1217 |
22 |
| Boomcloud 360 Inc. | 73 |
21 |
| Magic Leap, Inc. | 3255 |
19 |
| Bose Corporation | 2925 |
18 |
| Other owners | 853 |