- 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: 784
10-year publication summary
|
58
|
82
|
77
|
68
|
86
|
79
|
79
|
87
|
50
|
30
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shenzhen Shokz Co., Ltd. | 1400 |
79 |
| Sonos, Inc. | 2848 |
25 |
| Samsung Electronics Co., Ltd. | 157300 |
24 |
| Harman International Industries, Incorporated | 2870 |
24 |
| Bose Corporation | 3091 |
22 |
| Goertek Inc. | 2819 |
19 |
| AAC Microtech (Changzhou) Co., Ltd. | 1012 |
17 |
| Apple Inc. | 58621 |
14 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 2021 |
13 |
| Yamaha Corporation | 4074 |
12 |
| Knowles Electronics, LLC | 593 |
11 |
| AAC Technologies Pte. Ltd. | 1502 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 33845 |
8 |
| Cirrus Logic, Inc. | 1803 |
8 |
| InvenSense, Inc. | 1207 |
8 |
| Sony Corporation | 30236 |
7 |
| Nokia Corporation | 4794 |
7 |
| Huawei Technologies Co., Ltd. | 122871 |
7 |
| SSI New Material (Zhenjiang) Co., Ltd. | 70 |
7 |
| Nokia Technologies Oy | 21020 |
6 |
| Other owners | 457 |