- 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: 1572
10-year publication summary
|
85
|
130
|
135
|
148
|
172
|
157
|
137
|
148
|
127
|
39
|
| 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 |
78 |
| Huawei Technologies Co., Ltd. | 100781 |
64 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4569 |
57 |
| Sony Corporation | 32931 |
54 |
| Samsung Electronics Co., Ltd. | 131630 |
52 |
| Dolby International AB | 1076 |
45 |
| Qualcomm Incorporated | 76576 |
43 |
| Yamaha Corporation | 4054 |
38 |
| Sonos, Inc. | 2274 |
37 |
| Nokia Technologies Oy | 15057 |
36 |
| JVC Kenwood Corporation | 2774 |
34 |
| Apple Inc. | 50209 |
32 |
| Eight Khz, LLC | 40 |
24 |
| Starkey Laboratories, Inc. | 1160 |
22 |
| Voyetra Turtle Beach, Inc. | 461 |
21 |
| Boomcloud 360 Inc. | 69 |
19 |
| Sony Group Corporation | 10730 |
19 |
| Dolby International AB | 422 |
19 |
| Bose Corporation | 2880 |
18 |
| Magic Leap, Inc. | 3028 |
18 |
| Other owners | 842 |