- 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: 11787
10-year publication summary
|
815
|
942
|
1090
|
1149
|
1156
|
1148
|
1119
|
965
|
775
|
544
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 147983 |
414 |
| Cirrus Logic, Inc. | 1784 |
296 |
| Yamaha Corporation | 4077 |
295 |
| Sony Corporation | 30910 |
279 |
| Bose Corporation | 3001 |
272 |
| Apple Inc. | 55640 |
246 |
| Nokia Technologies Oy | 18494 |
237 |
| Sonos, Inc. | 2660 |
203 |
| Qualcomm Incorporated | 86867 |
184 |
| Panasonic Intellectual Property Management Co., Ltd. | 32105 |
158 |
| Amazon Technologies, Inc. | 27025 |
155 |
| Sony Group Corporation | 14299 |
154 |
| Microsoft Technology Licensing, LLC | 54000 |
142 |
| Dolby Laboratories Licensing Corporation | 4156 |
139 |
| Huawei Technologies Co., Ltd. | 114320 |
130 |
| Nippon Telegraph and Telephone Corporation | 16975 |
126 |
| Google LLC | 42673 |
123 |
| Harman International Industries, Incorporated | 2678 |
119 |
| Knowles Electronics, LLC | 600 |
104 |
| Shure Acquisition Holdings, Inc. | 531 |
99 |
| Other owners | 7912 |