- 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: 3369
10-year publication summary
|
233
|
241
|
372
|
451
|
379
|
405
|
349
|
256
|
226
|
42
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 152716 |
206 |
| Sonos, Inc. | 2773 |
195 |
| Apple Inc. | 57718 |
183 |
| Bose Corporation | 3070 |
125 |
| Dolby Laboratories Licensing Corporation | 4256 |
123 |
| Harman International Industries, Incorporated | 2774 |
81 |
| Nokia Technologies Oy | 19932 |
74 |
| Qualcomm Incorporated | 89620 |
64 |
| Yamaha Corporation | 4068 |
59 |
| META Platforms Technologies, LLC | 6264 |
56 |
| Sony Corporation | 30510 |
52 |
| Magic Leap, Inc. | 3357 |
47 |
| Voyetra Turtle Beach, Inc. | 521 |
47 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 5186 |
40 |
| Huawei Technologies Co., Ltd. | 119240 |
39 |
| Cirrus Logic, Inc. | 1791 |
39 |
| Google LLC | 43621 |
37 |
| Microsoft Technology Licensing, LLC | 54234 |
33 |
| Boomcloud 360 Inc. | 75 |
33 |
| Biamp Systems, LLC | 373 |
33 |
| Other owners | 1803 |