- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 19/06 - Gramophone pick-ups using a stylusRecorders using a stylus
Patent holdings for IPC class H04R 19/06
Total number of patents in this class: 3
10-year publication summary
|
1
|
1
|
0
|
2
|
0
|
0
|
0
|
0
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 2021 |
1 |
| Butterfly Network, Inc. | 126 |
1 |
| Graphaudio | 3 |
1 |
| Other owners | 0 |