- 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: 11949
10-year publication summary
|
942
|
1090
|
1149
|
1156
|
1148
|
1120
|
969
|
788
|
656
|
52
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 150751 |
418 |
| Cirrus Logic, Inc. | 1788 |
297 |
| Yamaha Corporation | 4070 |
291 |
| Sony Corporation | 30654 |
279 |
| Bose Corporation | 3050 |
279 |
| Apple Inc. | 56830 |
253 |
| Nokia Technologies Oy | 19518 |
240 |
| Sonos, Inc. | 2731 |
204 |
| Qualcomm Incorporated | 88424 |
184 |
| Sony Group Corporation | 14803 |
162 |
| Panasonic Intellectual Property Management Co., Ltd. | 32838 |
161 |
| Amazon Technologies, Inc. | 27426 |
159 |
| Dolby Laboratories Licensing Corporation | 4230 |
142 |
| Microsoft Technology Licensing, LLC | 54343 |
141 |
| Huawei Technologies Co., Ltd. | 117433 |
132 |
| Google LLC | 43353 |
125 |
| Nippon Telegraph and Telephone Corporation | 16263 |
124 |
| Harman International Industries, Incorporated | 2736 |
123 |
| Shure Acquisition Holdings, Inc. | 546 |
105 |
| Knowles Electronics, LLC | 596 |
104 |
| Other owners | 8026 |