- 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: 740
10-year publication summary
|
47
|
56
|
81
|
76
|
65
|
84
|
77
|
78
|
81
|
42
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shenzhen Shokz Co., Ltd. | 1119 |
68 |
| Sonos, Inc. | 2633 |
24 |
| Samsung Electronics Co., Ltd. | 147003 |
23 |
| Harman International Industries, Incorporated | 2655 |
23 |
| Bose Corporation | 2999 |
22 |
| Goertek Inc. | 2661 |
19 |
| AAC Microtech (Changzhou) Co., Ltd. | 754 |
17 |
| Apple Inc. | 55229 |
13 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1950 |
13 |
| Yamaha Corporation | 4075 |
11 |
| Knowles Electronics, LLC | 600 |
10 |
| AAC Technologies Pte. Ltd. | 1463 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 31598 |
8 |
| Cirrus Logic, Inc. | 1779 |
8 |
| Sony Corporation | 31004 |
7 |
| Nokia Corporation | 5597 |
7 |
| SSI New Material (Zhenjiang) Co., Ltd. | 51 |
7 |
| Huawei Technologies Co., Ltd. | 113191 |
6 |
| Nokia Technologies Oy | 18175 |
6 |
| Cloud Microphones, LLC | 20 |
6 |
| Other owners | 433 |