- 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: 100
10-year publication summary
|
15
|
12
|
14
|
13
|
5
|
3
|
7
|
8
|
10
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cirrus Logic, Inc. | 1776 |
5 |
| Google LLC | 42261 |
5 |
| Knowles Electronics, LLC | 600 |
5 |
| Yamaha Corporation | 4089 |
3 |
| Nokia Technologies Oy | 17854 |
3 |
| Red Tail Hawk Corporation | 26 |
3 |
| Arkamys | 40 |
2 |
| Audera Acoustics Inc. | 11 |
2 |
| Cnrs | 100 |
2 |
| Dolby Laboratories Licensing Corporation | 4124 |
2 |
| Goertek Inc. | 2658 |
2 |
| Sonion Nederland B.V. | 151 |
2 |
| Universite du Maine | 56 |
2 |
| Whylot SAS | 81 |
2 |
| Alps Alpine Co., Ltd. | 2084 |
2 |
| Custom Art SP Z.O.O. | 2 |
2 |
| Analog Devices International Unlimited Company | 1914 |
2 |
| Goodix Technology (HK) Company Limited | 94 |
2 |
| Nanjing Silergy Semiconductor (Hong Kong) Technology Ltd. | 78 |
2 |
| Sony Group Corporation | 13851 |
2 |
| Other owners | 48 |