- 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: 3090
10-year publication summary
|
197
|
239
|
241
|
374
|
457
|
381
|
407
|
342
|
250
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 138729 |
180 |
| Apple Inc. | 52680 |
169 |
| Sonos, Inc. | 2458 |
169 |
| Dolby Laboratories Licensing Corporation | 4052 |
115 |
| Bose Corporation | 2921 |
112 |
| Nokia Technologies Oy | 16514 |
70 |
| Qualcomm Incorporated | 81758 |
63 |
| Harman International Industries, Incorporated | 2538 |
63 |
| Yamaha Corporation | 4076 |
57 |
| META Platforms Technologies, LLC | 5351 |
54 |
| Sony Corporation | 31550 |
52 |
| Voyetra Turtle Beach, Inc. | 481 |
41 |
| Magic Leap, Inc. | 3248 |
39 |
| Cirrus Logic, Inc. | 1749 |
38 |
| Huawei Technologies Co., Ltd. | 106664 |
37 |
| Google LLC | 40800 |
35 |
| Microsoft Technology Licensing, LLC | 52893 |
34 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4799 |
33 |
| Boomcloud 360 Inc. | 71 |
32 |
| Biamp Systems, LLC | 230 |
30 |
| Other owners | 1667 |