- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 7/18 - Mounting or tensioning of diaphragms or cones at the periphery
Patent holdings for IPC class H04R 7/18
Total number of patents in this class: 867
10-year publication summary
|
60
|
69
|
111
|
68
|
95
|
54
|
89
|
87
|
108
|
88
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AAC Microtech (Changzhou) Co., Ltd. | 837 |
81 |
| AAC Technologies Pte. Ltd. | 1476 |
53 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1978 |
47 |
| Goertek Inc. | 2691 |
43 |
| Apple Inc. | 56547 |
30 |
| Pioneer Corporation | 4136 |
25 |
| Tohoku Pioneer Corporation | 470 |
25 |
| Bose Corporation | 3034 |
24 |
| Shenzhen Shokz Co., Ltd. | 1194 |
18 |
| PSS Belgium N.V. | 123 |
17 |
| Panasonic Automotive Systems Co., Ltd. | 1986 |
14 |
| Knowles Electronics, LLC | 598 |
13 |
| Panasonic Intellectual Property Management Co., Ltd. | 32551 |
12 |
| Samsung Electronics Co., Ltd. | 149362 |
11 |
| Infineon Technologies AG | 8290 |
11 |
| Panasonic Corporation | 19937 |
10 |
| Murata Manufacturing Co., Ltd. | 25037 |
9 |
| DB HiTek Co., Ltd. | 314 |
8 |
| Sony Corporation | 30760 |
7 |
| Kyocera Corporation | 14102 |
7 |
| Other owners | 402 |