- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 9/02 - Transducers of moving-coil, moving-strip, or moving-wire type Details
Patent holdings for IPC class H04R 9/02
Total number of patents in this class: 4067
10-year publication summary
|
197
|
207
|
283
|
303
|
494
|
507
|
436
|
313
|
438
|
199
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Goertek Inc. | 2663 |
504 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1952 |
371 |
| AAC Technologies Pte. Ltd. | 1465 |
370 |
| AAC Microtech (Changzhou) Co., Ltd. | 758 |
303 |
| Shenzhen Shokz Co., Ltd. | 1134 |
207 |
| Apple Inc. | 55345 |
105 |
| Pioneer Corporation | 4301 |
104 |
| Tohoku Pioneer Corporation | 475 |
101 |
| LG Display Co., Ltd. | 13820 |
82 |
| Samsung Electronics Co., Ltd. | 147334 |
66 |
| Panasonic Intellectual Property Management Co., Ltd. | 31756 |
57 |
| Panasonic Corporation | 20059 |
45 |
| Huawei Technologies Co., Ltd. | 113491 |
45 |
| Bose Corporation | 3001 |
45 |
| Harman International Industries, Incorporated | 2656 |
44 |
| Google LLC | 42510 |
42 |
| AAC Technologies (Nanjing) Co., Ltd. | 360 |
39 |
| Panasonic Automotive Systems Co., Ltd. | 1920 |
37 |
| BSE Co., Ltd. | 103 |
31 |
| Foster Electric Company, Limited | 181 |
31 |
| Other owners | 1438 |