- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; deaf-aid sets; public address systems
- H04R 1/04 - Structural association of microphone with electric circuitry therefor
Patent holdings for IPC class H04R 1/04
Total number of patents in this class: 1116
10-year publication summary
|
86
|
132
|
141
|
127
|
167
|
147
|
123
|
129
|
66
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Knowles Electronics, LLC | 605 |
98 |
| Samsung Electronics Co., Ltd. | 138729 |
37 |
| Infineon Technologies AG | 8141 |
34 |
| Shure Acquisition Holdings, Inc. | 493 |
32 |
| Apple Inc. | 52680 |
29 |
| InvenSense, Inc. | 1028 |
28 |
| Amazon Technologies, Inc. | 25884 |
23 |
| TDK Corporation | 6535 |
22 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1878 |
22 |
| Shenzhen Shokz Co., Ltd. | 926 |
22 |
| Robert Bosch GmbH | 41765 |
21 |
| Cirrus Logic, Inc. | 1749 |
18 |
| Google LLC | 40800 |
18 |
| Harman International Industries, Incorporated | 2538 |
16 |
| LG Electronics Inc. | 70957 |
15 |
| Panasonic Intellectual Property Management Co., Ltd. | 29687 |
15 |
| STMicroelectronics S.r.l. | 3657 |
15 |
| Hewlett-Packard Development Company, L.P. | 27473 |
14 |
| GoPro, Inc. | 1897 |
12 |
| Qualcomm Incorporated | 81758 |
11 |
| Other owners | 614 |