- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 7/14 - Non-planar diaphragms or cones corrugated, pleated, or ribbed
Patent holdings for IPC class H04R 7/14
Total number of patents in this class: 178
10-year publication summary
|
26
|
22
|
18
|
16
|
12
|
15
|
13
|
7
|
10
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1950 |
11 |
| Goertek Inc. | 2661 |
11 |
| AAC Technologies Pte. Ltd. | 1463 |
11 |
| Pioneer Corporation | 4330 |
8 |
| Yamaha Corporation | 4075 |
7 |
| Tohoku Pioneer Corporation | 475 |
6 |
| Infineon Technologies AG | 8235 |
5 |
| Bose Corporation | 2999 |
5 |
| GP Acoustics (UK) Limited | 29 |
4 |
| Victor Company of Japan, Limited | 43 |
4 |
| Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. | 139 |
4 |
| Pradnesh Mohare | 4 |
4 |
| Apple Inc. | 55229 |
3 |
| Knowles Electronics, LLC | 600 |
3 |
| Mogami Denki Corporation | 11 |
3 |
| Sennheiser electronic GmbH & Co. KG | 289 |
3 |
| Goertek Microelectronics Co., Ltd. | 20 |
3 |
| Sony Corporation | 31004 |
2 |
| Robert Bosch GmbH | 42721 |
2 |
| Focal Jmlab | 63 |
2 |
| Other owners | 77 |