- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; deaf-aid sets; public address systems
- H04R 5/04 - Circuit arrangements
Patent holdings for IPC class H04R 5/04
Total number of patents in this class: 2898
10-year publication summary
|
162
|
197
|
239
|
241
|
374
|
457
|
376
|
403
|
334
|
79
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 131630 |
167 |
| Sonos, Inc. | 2274 |
154 |
| Apple Inc. | 50209 |
151 |
| Bose Corporation | 2880 |
110 |
| Dolby Laboratories Licensing Corporation | 3883 |
105 |
| Nokia Technologies Oy | 15057 |
68 |
| Qualcomm Incorporated | 76576 |
57 |
| Yamaha Corporation | 4054 |
56 |
| Sony Corporation | 32931 |
54 |
| Harman International Industries, Incorporated | 2443 |
54 |
| META Platforms Technologies, LLC | 4806 |
52 |
| Voyetra Turtle Beach, Inc. | 461 |
39 |
| Cirrus Logic, Inc. | 1719 |
38 |
| Huawei Technologies Co., Ltd. | 100781 |
35 |
| Magic Leap, Inc. | 3028 |
35 |
| Microsoft Technology Licensing, LLC | 51439 |
34 |
| Google LLC | 38759 |
34 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4569 |
30 |
| Boomcloud 360 Inc. | 69 |
30 |
| Koss Corporation | 134 |
28 |
| Other owners | 1567 |