- 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: 12047
10-year publication summary
|
942
|
1090
|
1149
|
1156
|
1148
|
1120
|
972
|
793
|
658
|
176
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 153573 |
427 |
| Cirrus Logic, Inc. | 1792 |
300 |
| Yamaha Corporation | 4067 |
292 |
| Bose Corporation | 3077 |
283 |
| Sony Corporation | 30440 |
280 |
| Apple Inc. | 58049 |
259 |
| Nokia Technologies Oy | 20244 |
239 |
| Sonos, Inc. | 2787 |
205 |
| Qualcomm Incorporated | 90109 |
185 |
| Sony Group Corporation | 15148 |
164 |
| Panasonic Intellectual Property Management Co., Ltd. | 33462 |
162 |
| Amazon Technologies, Inc. | 27683 |
160 |
| Dolby Laboratories Licensing Corporation | 4262 |
143 |
| Microsoft Technology Licensing, LLC | 54215 |
141 |
| Huawei Technologies Co., Ltd. | 119891 |
133 |
| Harman International Industries, Incorporated | 2797 |
130 |
| Google LLC | 43739 |
125 |
| Nippon Telegraph and Telephone Corporation | 16002 |
121 |
| Shure Acquisition Holdings, Inc. | 556 |
110 |
| Knowles Electronics, LLC | 589 |
103 |
| Other owners | 8085 |