- 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: 702
10-year publication summary
|
68
|
71
|
83
|
77
|
63
|
71
|
70
|
68
|
82
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shenzhen Shokz Co., Ltd. | 926 |
65 |
| Bose Corporation | 2921 |
31 |
| Samsung Electronics Co., Ltd. | 138729 |
19 |
| Harman International Industries, Incorporated | 2538 |
18 |
| Sony Corporation | 31550 |
17 |
| Google LLC | 40800 |
15 |
| Apple Inc. | 52680 |
14 |
| Panasonic Intellectual Property Management Co., Ltd. | 29687 |
13 |
| AAC Microtech (Changzhou) Co., Ltd. | 630 |
13 |
| Goertek Inc. | 2588 |
11 |
| Taiyo Yuden Co., Ltd. | 1886 |
9 |
| Sound Fun Corporation | 16 |
9 |
| Qualcomm Incorporated | 81758 |
8 |
| Genelec Oy | 127 |
8 |
| Knowles Electronics, LLC | 605 |
8 |
| Sonion Nederland B.V. | 142 |
8 |
| Cochlear Limited | 1806 |
7 |
| Kaetel Systems GmbH | 38 |
7 |
| Resonado Inc. | 20 |
7 |
| xMEMS Labs, Inc. | 103 |
7 |
| Other owners | 408 |