- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 5/04 - Circuit arrangements
Patent holdings for IPC class H04R 5/04
Total number of patents in this class: 3247
10-year publication summary
|
194
|
233
|
241
|
372
|
451
|
379
|
405
|
347
|
252
|
161
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 146811 |
195 |
| Apple Inc. | 55174 |
182 |
| Sonos, Inc. | 2627 |
182 |
| Dolby Laboratories Licensing Corporation | 4135 |
121 |
| Bose Corporation | 2999 |
120 |
| Harman International Industries, Incorporated | 2652 |
74 |
| Nokia Technologies Oy | 18116 |
73 |
| Qualcomm Incorporated | 85833 |
64 |
| Yamaha Corporation | 4080 |
59 |
| META Platforms Technologies, LLC | 5853 |
55 |
| Sony Corporation | 31025 |
52 |
| Voyetra Turtle Beach, Inc. | 509 |
47 |
| Magic Leap, Inc. | 3272 |
46 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4969 |
39 |
| Huawei Technologies Co., Ltd. | 113064 |
38 |
| Cirrus Logic, Inc. | 1775 |
38 |
| Google LLC | 42333 |
37 |
| Microsoft Technology Licensing, LLC | 53786 |
34 |
| Boomcloud 360 Inc. | 74 |
33 |
| Biamp Systems, LLC | 240 |
33 |
| Other owners | 1725 |