- 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: 189
10-year publication summary
|
22
|
18
|
16
|
12
|
16
|
13
|
7
|
10
|
6
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AAC Technologies Pte. Ltd. | 1505 |
13 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 2023 |
12 |
| Goertek Inc. | 2827 |
11 |
| Pioneer Corporation | 3779 |
8 |
| Yamaha Corporation | 4076 |
7 |
| Tohoku Pioneer Corporation | 465 |
6 |
| Infineon Technologies AG | 8405 |
5 |
| Bose Corporation | 3095 |
5 |
| GP Acoustics (UK) Limited | 27 |
4 |
| Victor Company of Japan, Limited | 38 |
4 |
| Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. | 145 |
4 |
| Pradnesh Mohare | 4 |
4 |
| Apple Inc. | 58936 |
3 |
| Robert Bosch GmbH | 44209 |
3 |
| Knowles Electronics, LLC | 593 |
3 |
| Mogami Denki Corporation | 11 |
3 |
| PSS Belgium N.V. | 136 |
3 |
| Sennheiser electronic GmbH & Co. KG | 275 |
3 |
| Goertek Microelectronics Co., Ltd. | 19 |
3 |
| Shenzhen Shokz Co., Ltd. | 1414 |
3 |
| Other owners | 82 |