- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 7/10 - Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
Patent holdings for IPC class H04R 7/10
Total number of patents in this class: 281
10-year publication summary
|
19
|
36
|
26
|
20
|
35
|
19
|
25
|
18
|
19
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Goertek Inc. | 2820 |
41 |
| Infineon Technologies AG | 8400 |
11 |
| Agc, Inc. | 5502 |
10 |
| LG Display Co., Ltd. | 14965 |
7 |
| Tesa SE | 1126 |
7 |
| AAC Technologies Pte. Ltd. | 1505 |
6 |
| Warwick Acoustics Limited | 15 |
6 |
| Murata Manufacturing Co., Ltd. | 25722 |
5 |
| Rohm Co., Ltd. | 6824 |
5 |
| AAC Microtech (Changzhou) Co., Ltd. | 1021 |
5 |
| Bose Corporation | 3093 |
5 |
| USound GmbH | 83 |
5 |
| 3m Innovative Properties Company | 17488 |
4 |
| 4A Manufacturing GmbH | 12 |
4 |
| Panasonic Automotive Systems Co., Ltd. | 2072 |
4 |
| Apple Inc. | 58705 |
3 |
| Samsung Display Co., Ltd. | 38570 |
3 |
| Sony Corporation | 30208 |
3 |
| FUJIFILM Corporation | 30512 |
3 |
| Robert Bosch GmbH | 44128 |
3 |
| Other owners | 141 |