- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 1/22 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
Patent holdings for IPC class H04R 1/22
Total number of patents in this class: 758
10-year publication summary
|
56
|
81
|
76
|
65
|
84
|
78
|
79
|
83
|
50
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shenzhen Shokz Co., Ltd. | 1286 |
72 |
| Samsung Electronics Co., Ltd. | 153573 |
24 |
| Sonos, Inc. | 2787 |
24 |
| Harman International Industries, Incorporated | 2797 |
23 |
| Bose Corporation | 3077 |
22 |
| Goertek Inc. | 2760 |
19 |
| AAC Microtech (Changzhou) Co., Ltd. | 908 |
17 |
| Apple Inc. | 58049 |
14 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 2009 |
13 |
| Yamaha Corporation | 4067 |
11 |
| Knowles Electronics, LLC | 589 |
10 |
| AAC Technologies Pte. Ltd. | 1494 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 33462 |
8 |
| Cirrus Logic, Inc. | 1792 |
8 |
| InvenSense, Inc. | 1205 |
8 |
| Sony Corporation | 30440 |
7 |
| Nokia Corporation | 5052 |
7 |
| Huawei Technologies Co., Ltd. | 119891 |
7 |
| SSI New Material (Zhenjiang) Co., Ltd. | 65 |
7 |
| Nokia Technologies Oy | 20244 |
6 |
| Other owners | 442 |