- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 23/02 - Transducers using more than one principle simultaneously
Patent holdings for IPC class H04R 23/02
Total number of patents in this class: 106
10-year publication summary
|
16
|
25
|
27
|
10
|
16
|
5
|
6
|
7
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 31541 |
7 |
| Goertek Inc. | 2591 |
6 |
| DMF, Inc. | 122 |
5 |
| Moda-innochips Co., Ltd. | 99 |
5 |
| Taiyo Yuden Co., Ltd. | 1887 |
4 |
| Vocalzoom Systems Ltd. | 26 |
4 |
| The Boeing Company | 19911 |
3 |
| Robert Bosch GmbH | 41786 |
3 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1878 |
3 |
| Qualcomm Incorporated | 81865 |
2 |
| Qualcomm Mems Technologies, Inc. | 628 |
2 |
| LG Display Co., Ltd. | 12892 |
2 |
| Ford Global Technologies, LLC | 20070 |
2 |
| Microsoft Technology Licensing, LLC | 52886 |
2 |
| Almus Corp. | 17 |
2 |
| Cochlear Limited | 1809 |
2 |
| Soniphi, LLC | 16 |
2 |
| Soundfun!co., Ltd. | 2 |
2 |
| Technion Research & Development Foundation Ltd. | 1197 |
2 |
| USound GmbH | 80 |
2 |
| Other owners | 44 |