- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/14 - Signalling existence of persistent "off-hook" condition
Patent holdings for IPC class H04M 3/14
Total number of patents in this class: 11
10-year publication summary
|
1
|
2
|
0
|
2
|
3
|
2
|
0
|
0
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 100781 |
2 |
| Orange S.A. | 1379 |
2 |
| Microsemi P.O.E. Ltd. | 25 |
2 |
| Orange | 1759 |
2 |
| Canon Inc. | 36841 |
1 |
| ARRIS Enterprises LLC | 3432 |
1 |
| Microsemi Corporation | 125 |
1 |
| Other owners | 0 |