- 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: 810
10-year publication summary
|
60
|
69
|
112
|
68
|
95
|
54
|
89
|
86
|
105
|
34
|
| 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. | 694 |
68 |
| AAC Technologies Pte. Ltd. | 1452 |
52 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1916 |
47 |
| Goertek Inc. | 2639 |
42 |
| Apple Inc. | 54300 |
29 |
| Pioneer Corporation | 4409 |
25 |
| Tohoku Pioneer Corporation | 476 |
25 |
| Bose Corporation | 2956 |
25 |
| PSS Belgium N.V. | 114 |
15 |
| Shenzhen Shokz Co., Ltd. | 1044 |
15 |
| Knowles Electronics, LLC | 599 |
13 |
| Panasonic Automotive Systems Co., Ltd. | 1848 |
13 |
| Panasonic Intellectual Property Management Co., Ltd. | 30822 |
12 |
| Samsung Electronics Co., Ltd. | 143555 |
11 |
| Infineon Technologies AG | 8187 |
11 |
| Panasonic Corporation | 20188 |
10 |
| Murata Manufacturing Co., Ltd. | 24260 |
9 |
| DB HiTek Co., Ltd. | 305 |
9 |
| xMEMS Labs, Inc. | 107 |
8 |
| Sony Corporation | 31171 |
7 |
| Other owners | 364 |