- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; deaf-aid sets; public address systems
- H04R 7/26 - Damping by means acting directly on free portion of diaphragm or cone
Patent holdings for IPC class H04R 7/26
Total number of patents in this class: 141
10-year publication summary
|
14
|
20
|
16
|
22
|
9
|
21
|
18
|
18
|
9
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kyocera Corporation | 12735 |
10 |
| LG Display Co., Ltd. | 11907 |
7 |
| Hyundai Motor Company | 19021 |
4 |
| Pioneer Corporation | 4843 |
4 |
| Tohoku Pioneer Corporation | 477 |
4 |
| Goertek Inc. | 2477 |
4 |
| Sony Corporation | 32931 |
3 |
| Robert Bosch GmbH | 40953 |
3 |
| Infineon Technologies AG | 8189 |
3 |
| B & W Group Ltd | 344 |
3 |
| Agc, Inc. | 4029 |
3 |
| Samsung Electronics Co., Ltd. | 131630 |
2 |
| Apple Inc. | 50209 |
2 |
| International Business Machines Corporation | 60644 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
2 |
| Dell Products L.P. | 11144 |
2 |
| Yamaha Corporation | 4054 |
2 |
| Kia Motors Corporation | 7946 |
2 |
| Ask Industries S.p.A. | 43 |
2 |
| Bose Corporation | 2880 |
2 |
| Other owners | 75 |