- 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: 3404
10-year publication summary
|
239
|
241
|
379
|
457
|
381
|
410
|
354
|
260
|
231
|
79
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 155224 |
207 |
| Sonos, Inc. | 2812 |
197 |
| Apple Inc. | 58268 |
183 |
| Bose Corporation | 3088 |
125 |
| Dolby Laboratories Licensing Corporation | 4289 |
124 |
| Harman International Industries, Incorporated | 2827 |
81 |
| Nokia Technologies Oy | 20731 |
73 |
| Qualcomm Incorporated | 90870 |
64 |
| Yamaha Corporation | 4066 |
59 |
| META Platforms Technologies, LLC | 6363 |
57 |
| Sony Corporation | 30327 |
52 |
| Magic Leap, Inc. | 3372 |
47 |
| Voyetra Turtle Beach, Inc. | 523 |
47 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 5202 |
40 |
| Huawei Technologies Co., Ltd. | 121192 |
39 |
| Cirrus Logic, Inc. | 1796 |
39 |
| Google LLC | 44062 |
37 |
| Microsoft Technology Licensing, LLC | 54289 |
33 |
| Boomcloud 360 Inc. | 75 |
33 |
| Biamp Systems, LLC | 378 |
33 |
| Other owners | 1834 |