- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 7/08 - Plane diaphragms comprising a plurality of sections or layers comprising superposed layers separated by air or other fluid
Patent holdings for IPC class H04R 7/08
Total number of patents in this class: 94
10-year publication summary
|
3
|
6
|
13
|
9
|
8
|
8
|
13
|
6
|
4
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Agc, Inc. | 5537 |
16 |
| Infineon Technologies AG | 8402 |
9 |
| Apple Inc. | 58885 |
6 |
| Samsung Electronics Co., Ltd. | 157946 |
4 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 2023 |
4 |
| LG Display Co., Ltd. | 14964 |
3 |
| Turtle Beach Corporation | 69 |
3 |
| Sonicedge Ltd. | 32 |
3 |
| Shenzhen Shokz Co., Ltd. | 1413 |
3 |
| Knowles Electronics, LLC | 593 |
2 |
| Skyworks Solutions, Inc. | 3953 |
2 |
| Warwick Audio Technologies Limited | 6 |
2 |
| Recursion Pharmaceuticals, Inc. | 230 |
2 |
| Warwick Acoustics Limited | 15 |
2 |
| Sony Corporation | 30158 |
1 |
| Nokia Corporation | 4772 |
1 |
| Bayer MaterialScience AG | 710 |
1 |
| Kyocera Corporation | 14383 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 34035 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11124 |
1 |
| Other owners | 27 |