- 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: 797
10-year publication summary
|
58
|
82
|
77
|
68
|
86
|
79
|
80
|
89
|
50
|
43
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shenzhen Shokz Co., Ltd. | 1444 |
82 |
| Samsung Electronics Co., Ltd. | 159298 |
25 |
| Sonos, Inc. | 2893 |
25 |
| Harman International Industries, Incorporated | 2903 |
24 |
| Bose Corporation | 3107 |
22 |
| Goertek Inc. | 2846 |
19 |
| AAC Microtech (Changzhou) Co., Ltd. | 1041 |
18 |
| Apple Inc. | 59354 |
14 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 2027 |
13 |
| Yamaha Corporation | 4089 |
12 |
| Knowles Electronics, LLC | 594 |
11 |
| AAC Technologies Pte. Ltd. | 1506 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 34568 |
8 |
| Cirrus Logic, Inc. | 1798 |
8 |
| InvenSense, Inc. | 1212 |
8 |
| Sony Corporation | 30029 |
7 |
| Nokia Corporation | 4645 |
7 |
| Huawei Technologies Co., Ltd. | 125107 |
7 |
| SSI New Material (Zhenjiang) Co., Ltd. | 72 |
7 |
| Nokia Technologies Oy | 21911 |
6 |
| Other owners | 465 |