- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; deaf-aid sets; public address systems
- H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
Patent holdings for IPC class H04R 1/24
Total number of patents in this class: 640
10-year publication summary
|
50
|
68
|
71
|
83
|
77
|
63
|
70
|
69
|
65
|
21
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shenzhen Shokz Co., Ltd. | 629 |
49 |
| Bose Corporation | 2880 |
31 |
| Samsung Electronics Co., Ltd. | 131630 |
19 |
| Harman International Industries, Incorporated | 2443 |
18 |
| Sony Corporation | 32931 |
17 |
| Apple Inc. | 50209 |
14 |
| Google LLC | 38759 |
14 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
13 |
| Goertek Inc. | 2477 |
10 |
| Taiyo Yuden Co., Ltd. | 1809 |
9 |
| Sound Fun Corporation | 15 |
9 |
| Qualcomm Incorporated | 76576 |
8 |
| Sonion Nederland B.V. | 138 |
8 |
| Genelec Oy | 121 |
7 |
| Knowles Electronics, LLC | 597 |
7 |
| Resonado Inc. | 27 |
7 |
| Sony Group Corporation | 10730 |
7 |
| AAC Microtech (Changzhou) Co., Ltd. | 458 |
6 |
| Cochlear Limited | 1619 |
6 |
| Kaetel Systems GmbH | 33 |
6 |
| Other owners | 375 |