- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 9/10 - Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic with switching of direction of transmission by voice frequency
Patent holdings for IPC class H04M 9/10
Total number of patents in this class: 9
10-year publication summary
|
3
|
0
|
1
|
1
|
1
|
1
|
1
|
0
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tencent Technology (Shenzhen) Company Limited | 12951 |
3 |
| Samsung Electronics Co., Ltd. | 131630 |
1 |
| BlackBerry Limited | 5958 |
1 |
| Elno | 9 |
1 |
| Sorenson IP Holdings, LLC | 287 |
1 |
| Simultanex AB | 1 |
1 |
| Video Solutions Pte. Ltd. | 8 |
1 |
| Other owners | 0 |