- 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: 1665
10-year publication summary
|
126
|
132
|
147
|
170
|
155
|
134
|
149
|
139
|
112
|
86
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dolby Laboratories Licensing Corporation | 4202 |
92 |
| Huawei Technologies Co., Ltd. | 115556 |
71 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 5052 |
64 |
| Sony Corporation | 30805 |
53 |
| Qualcomm Incorporated | 87475 |
47 |
| Samsung Electronics Co., Ltd. | 148924 |
46 |
| Dolby International AB | 1026 |
44 |
| Sonos, Inc. | 2701 |
44 |
| Apple Inc. | 56211 |
42 |
| Yamaha Corporation | 4061 |
39 |
| Nokia Technologies Oy | 19120 |
37 |
| JVC Kenwood Corporation | 3059 |
36 |
| Voyetra Turtle Beach, Inc. | 519 |
31 |
| Dolby International AB | 718 |
31 |
| Eight Khz, LLC | 41 |
25 |
| Sony Group Corporation | 14504 |
24 |
| Boomcloud 360 Inc. | 75 |
23 |
| Starkey Laboratories, Inc. | 1289 |
23 |
| Magic Leap, Inc. | 3331 |
19 |
| Bose Corporation | 3024 |
18 |
| Other owners | 856 |