- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 19/04 - Microphones
Patent holdings for IPC class H04R 19/04
Total number of patents in this class: 2257
10-year publication summary
|
225
|
248
|
203
|
214
|
193
|
174
|
136
|
102
|
126
|
67
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Knowles Electronics, LLC | 593 |
207 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 2023 |
161 |
| Infineon Technologies AG | 8400 |
141 |
| InvenSense, Inc. | 1207 |
133 |
| Cirrus Logic, Inc. | 1803 |
73 |
| Robert Bosch GmbH | 44128 |
63 |
| STMicroelectronics S.r.l. | 3378 |
47 |
| Weifang Goertek Microelectronics Co., Ltd. | 158 |
46 |
| Goertek Inc. | 2820 |
44 |
| Omron Corporation | 7358 |
41 |
| AAC Technologies Pte. Ltd. | 1505 |
32 |
| MMI Semiconductor Co., Ltd. | 73 |
31 |
| Gmems Tech Shenzhen Limited | 34 |
26 |
| DB HiTek Co., Ltd. | 311 |
25 |
| Panasonic Corporation | 19060 |
24 |
| BSE Co., Ltd. | 88 |
24 |
| Cirrus Logic International Semiconductor Ltd. | 915 |
24 |
| Shure Acquisition Holdings, Inc. | 567 |
24 |
| LG Innotek Co., Ltd. | 8453 |
23 |
| Hyundai Motor Company | 24602 |
21 |
| Other owners | 1047 |