- 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: 1683
10-year publication summary
|
132
|
147
|
170
|
155
|
134
|
149
|
139
|
112
|
89
|
14
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dolby Laboratories Licensing Corporation | 4238 |
92 |
| Huawei Technologies Co., Ltd. | 117973 |
72 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 5155 |
64 |
| Sony Corporation | 30608 |
53 |
| Qualcomm Incorporated | 88742 |
48 |
| Samsung Electronics Co., Ltd. | 151303 |
46 |
| Dolby International AB | 1027 |
44 |
| Sonos, Inc. | 2742 |
43 |
| Apple Inc. | 57058 |
42 |
| Yamaha Corporation | 4069 |
41 |
| Nokia Technologies Oy | 19769 |
37 |
| JVC Kenwood Corporation | 3074 |
36 |
| Voyetra Turtle Beach, Inc. | 521 |
31 |
| Dolby International AB | 740 |
31 |
| Sony Group Corporation | 14891 |
25 |
| Eight Khz, LLC | 41 |
25 |
| Boomcloud 360 Inc. | 75 |
23 |
| Starkey Laboratories, Inc. | 1315 |
23 |
| Magic Leap, Inc. | 3341 |
20 |
| Bose Corporation | 3058 |
18 |
| Other owners | 869 |