- 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: 2218
10-year publication summary
|
225
|
248
|
202
|
214
|
193
|
174
|
135
|
101
|
124
|
17
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Knowles Electronics, LLC | 594 |
205 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1992 |
153 |
| Infineon Technologies AG | 8332 |
140 |
| InvenSense, Inc. | 1203 |
131 |
| Cirrus Logic, Inc. | 1795 |
73 |
| Robert Bosch GmbH | 43365 |
61 |
| STMicroelectronics S.r.l. | 3409 |
47 |
| Weifang Goertek Microelectronics Co., Ltd. | 158 |
46 |
| Goertek Inc. | 2733 |
44 |
| Omron Corporation | 7334 |
41 |
| BSE Co., Ltd. | 94 |
29 |
| AAC Technologies Pte. Ltd. | 1490 |
29 |
| MMI Semiconductor Co., Ltd. | 69 |
28 |
| Panasonic Corporation | 19859 |
26 |
| Gmems Tech Shenzhen Limited | 35 |
26 |
| DB HiTek Co., Ltd. | 310 |
25 |
| Cirrus Logic International Semiconductor Ltd. | 916 |
24 |
| Shure Acquisition Holdings, Inc. | 547 |
22 |
| Hyundai Motor Company | 23323 |
21 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46735 |
20 |
| Other owners | 1027 |