- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; deaf-aid sets; public 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: 3639
10-year publication summary
|
125
|
199
|
208
|
285
|
306
|
495
|
501
|
431
|
306
|
163
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Goertek Inc. | 2477 |
484 |
| AAC Technologies Pte. Ltd. | 1436 |
380 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1827 |
366 |
| AAC Microtech (Changzhou) Co., Ltd. | 458 |
201 |
| Shenzhen Shokz Co., Ltd. | 629 |
122 |
| Pioneer Corporation | 4843 |
103 |
| Apple Inc. | 50209 |
101 |
| Tohoku Pioneer Corporation | 477 |
100 |
| LG Display Co., Ltd. | 11907 |
74 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
55 |
| Samsung Electronics Co., Ltd. | 131630 |
53 |
| Panasonic Corporation | 20786 |
46 |
| Bose Corporation | 2880 |
45 |
| Google LLC | 38759 |
40 |
| Harman International Industries, Incorporated | 2443 |
40 |
| Huawei Technologies Co., Ltd. | 100781 |
39 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
37 |
| BSE Co., Ltd. | 118 |
32 |
| Panasonic Automotive Systems Co., Ltd. | 1440 |
28 |
| Sony Corporation | 32931 |
24 |
| Other owners | 1269 |