- 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: 1080
10-year publication summary
|
62
|
86
|
132
|
141
|
127
|
167
|
146
|
123
|
127
|
26
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Knowles Electronics, LLC | 597 |
98 |
| Infineon Technologies AG | 8189 |
36 |
| Samsung Electronics Co., Ltd. | 131630 |
35 |
| Shure Acquisition Holdings, Inc. | 449 |
32 |
| Apple Inc. | 50209 |
29 |
| InvenSense, Inc. | 1014 |
28 |
| TDK Corporation | 6306 |
22 |
| Amazon Technologies, Inc. | 24422 |
22 |
| Robert Bosch GmbH | 40953 |
20 |
| Cirrus Logic, Inc. | 1719 |
18 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1827 |
18 |
| Shenzhen Shokz Co., Ltd. | 629 |
18 |
| LG Electronics Inc. | 69257 |
15 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
15 |
| STMicroelectronics S.r.l. | 3693 |
15 |
| Harman International Industries, Incorporated | 2443 |
15 |
| Hewlett-Packard Development Company, L.P. | 28538 |
14 |
| Google LLC | 38759 |
13 |
| Sony Corporation | 32931 |
11 |
| GoPro, Inc. | 1915 |
11 |
| Other owners | 595 |