- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 3/00 - Circuits for transducers
Patent holdings for IPC class H04R 3/00
Total number of patents in this class: 12179
10-year publication summary
|
960
|
1098
|
1163
|
1176
|
1161
|
1129
|
980
|
800
|
668
|
346
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 157557 |
438 |
| Cirrus Logic, Inc. | 1803 |
302 |
| Yamaha Corporation | 4071 |
288 |
| Bose Corporation | 3093 |
286 |
| Sony Corporation | 30208 |
280 |
| Apple Inc. | 58705 |
260 |
| Nokia Technologies Oy | 21069 |
240 |
| Sonos, Inc. | 2853 |
206 |
| Qualcomm Incorporated | 91997 |
187 |
| Sony Group Corporation | 15597 |
167 |
| Panasonic Intellectual Property Management Co., Ltd. | 33911 |
164 |
| Amazon Technologies, Inc. | 28066 |
162 |
| Dolby Laboratories Licensing Corporation | 4320 |
143 |
| Microsoft Technology Licensing, LLC | 54439 |
141 |
| Huawei Technologies Co., Ltd. | 123282 |
139 |
| Harman International Industries, Incorporated | 2874 |
132 |
| Google LLC | 44482 |
129 |
| Nippon Telegraph and Telephone Corporation | 15922 |
121 |
| Shure Acquisition Holdings, Inc. | 567 |
114 |
| Knowles Electronics, LLC | 593 |
104 |
| Other owners | 8176 |