- 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: 4281
10-year publication summary
|
208
|
285
|
306
|
495
|
509
|
438
|
319
|
445
|
280
|
153
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Goertek Inc. | 2814 |
517 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 2020 |
373 |
| AAC Technologies Pte. Ltd. | 1499 |
372 |
| AAC Microtech (Changzhou) Co., Ltd. | 1001 |
357 |
| Shenzhen Shokz Co., Ltd. | 1399 |
243 |
| Apple Inc. | 58592 |
110 |
| Pioneer Corporation | 3797 |
99 |
| Tohoku Pioneer Corporation | 467 |
98 |
| LG Display Co., Ltd. | 14919 |
85 |
| Samsung Electronics Co., Ltd. | 157039 |
73 |
| Panasonic Intellectual Property Management Co., Ltd. | 33792 |
59 |
| Harman International Industries, Incorporated | 2870 |
55 |
| Huawei Technologies Co., Ltd. | 122656 |
53 |
| Bose Corporation | 3088 |
45 |
| Google LLC | 44407 |
43 |
| Panasonic Corporation | 19134 |
40 |
| AAC Technologies (Nanjing) Co., Ltd. | 363 |
39 |
| Foster Electric Company, Limited | 197 |
39 |
| Panasonic Automotive Systems Co., Ltd. | 2065 |
38 |
| BSE Co., Ltd. | 88 |
31 |
| Other owners | 1512 |