- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; deaf-aid sets; public 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: 107
10-year publication summary
|
7
|
16
|
25
|
27
|
10
|
16
|
5
|
6
|
7
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 32931 |
7 |
| Goertek Inc. | 2477 |
6 |
| Vocalzoom Systems Ltd. | 30 |
6 |
| DMF, Inc. | 119 |
5 |
| Moda-innochips Co., Ltd. | 98 |
5 |
| Taiyo Yuden Co., Ltd. | 1809 |
4 |
| The Boeing Company | 19843 |
3 |
| Robert Bosch GmbH | 40953 |
3 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1827 |
3 |
| Qualcomm Incorporated | 76576 |
2 |
| Qualcomm Mems Technologies, Inc. | 628 |
2 |
| LG Display Co., Ltd. | 11907 |
2 |
| Ford Global Technologies, LLC | 19702 |
2 |
| Microsoft Technology Licensing, LLC | 51439 |
2 |
| Almus Corp. | 16 |
2 |
| Cochlear Limited | 1619 |
2 |
| Soniphi, LLC | 15 |
2 |
| Soundfun!co., Ltd. | 2 |
2 |
| Technion Research & Development Foundation Ltd. | 1167 |
2 |
| USound GmbH | 79 |
2 |
| Other owners | 43 |