- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; deaf-aid sets; public address systems
- H04R 11/04 - Microphones
Patent holdings for IPC class H04R 11/04
Total number of patents in this class: 132
10-year publication summary
|
18
|
11
|
10
|
12
|
5
|
8
|
2
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Knowles Electronics, LLC | 605 |
12 |
| InvenSense, Inc. | 1028 |
8 |
| TDK Corporation | 6535 |
5 |
| Sonion Nederland B.V. | 142 |
5 |
| Shenzhen Bellsing Acoustic Technology Company Limited | 15 |
5 |
| Fortemedia, Inc. | 144 |
4 |
| Infineon Technologies AG | 8141 |
3 |
| Funai Electric Co., Ltd. | 863 |
3 |
| Malikie Innovations Limited | 7378 |
3 |
| LG Electronics Inc. | 70957 |
2 |
| Robert Bosch GmbH | 41765 |
2 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 40583 |
2 |
| STMicroelectronics S.r.l. | 3657 |
2 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1878 |
2 |
| Cochlear Limited | 1806 |
2 |
| Harman International Industries, Incorporated | 2538 |
2 |
| ICOM Incorporated | 249 |
2 |
| Kabushiki Kaisha Audio-Technica | 137 |
2 |
| MED-EL Elektromedizinische Geraete GmbH | 624 |
2 |
| Sonova AG | 1048 |
2 |
| Other owners | 62 |