- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/10 - Providing fault- or trouble-signals
Patent holdings for IPC class H04M 3/10
Total number of patents in this class: 18
10-year publication summary
|
5
|
2
|
3
|
3
|
1
|
2
|
1
|
0
|
0
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| British Telecommunications Public Limited Company | 2575 |
4 |
| Sony Corporation | 32931 |
2 |
| AtHoc, Inc. | 29 |
2 |
| Kone Oyj | 2000 |
2 |
| Samsung Electronics Co., Ltd. | 131630 |
1 |
| Microsoft Technology Licensing, LLC | 51439 |
1 |
| Nippon Telegraph and Telephone Corporation | 14195 |
1 |
| Mitel Networks Corporation | 455 |
1 |
| NEC Platforms, Ltd. | 1106 |
1 |
| Avago Technologies International Sales Pte. Limited | 9260 |
1 |
| Avoxi, Inc. | 5 |
1 |
| Revenue Acquisition LLC | 2 |
1 |
| Other owners | 0 |