- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 3/08 - Circuits for transducers for correcting frequency response of electromagnetic transducers
Patent holdings for IPC class H04R 3/08
Total number of patents in this class: 104
10-year publication summary
|
12
|
14
|
13
|
5
|
3
|
7
|
8
|
10
|
8
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cirrus Logic, Inc. | 1792 |
5 |
| Google LLC | 43739 |
5 |
| Knowles Electronics, LLC | 589 |
5 |
| Yamaha Corporation | 4067 |
3 |
| Nokia Technologies Oy | 20244 |
3 |
| Gentex Corporation | 1942 |
3 |
| Arkamys | 49 |
2 |
| Audera Acoustics Inc. | 11 |
2 |
| Cnrs | 95 |
2 |
| Dolby Laboratories Licensing Corporation | 4262 |
2 |
| Goertek Inc. | 2760 |
2 |
| Harman International Industries, Incorporated | 2797 |
2 |
| Sonion Nederland B.V. | 163 |
2 |
| Universite du Maine | 51 |
2 |
| Whylot SAS | 82 |
2 |
| Alps Alpine Co., Ltd. | 2229 |
2 |
| Custom Art SP Z.O.O. | 2 |
2 |
| Analog Devices International Unlimited Company | 2006 |
2 |
| Goodix Technology (HK) Company Limited | 95 |
2 |
| Nanjing Silergy Semiconductor (Hong Kong) Technology Ltd. | 78 |
2 |
| Other owners | 52 |