- 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: 4164
10-year publication summary
|
207
|
283
|
303
|
494
|
507
|
436
|
318
|
441
|
275
|
25
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Goertek Inc. | 2724 |
511 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1988 |
373 |
| AAC Technologies Pte. Ltd. | 1488 |
372 |
| AAC Microtech (Changzhou) Co., Ltd. | 885 |
336 |
| Shenzhen Shokz Co., Ltd. | 1226 |
220 |
| Apple Inc. | 56891 |
108 |
| Pioneer Corporation | 4050 |
102 |
| Tohoku Pioneer Corporation | 470 |
101 |
| LG Display Co., Ltd. | 14035 |
82 |
| Samsung Electronics Co., Ltd. | 151017 |
68 |
| Panasonic Intellectual Property Management Co., Ltd. | 32904 |
58 |
| Huawei Technologies Co., Ltd. | 117695 |
49 |
| Harman International Industries, Incorporated | 2739 |
47 |
| Panasonic Corporation | 19890 |
45 |
| Bose Corporation | 3058 |
45 |
| Google LLC | 43386 |
42 |
| AAC Technologies (Nanjing) Co., Ltd. | 363 |
39 |
| Foster Electric Company, Limited | 188 |
38 |
| Panasonic Automotive Systems Co., Ltd. | 2000 |
38 |
| BSE Co., Ltd. | 96 |
31 |
| Other owners | 1459 |