- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 1/70 - Lock-out or secrecy arrangements in party-line systems
Patent holdings for IPC class H04M 1/70
Total number of patents in this class: 8
10-year publication summary
|
2
|
1
|
1
|
0
|
0
|
0
|
1
|
0
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| R.n Nehushtan Trust Ltd. | 5 |
3 |
| Qubitekk, Inc. | 26 |
1 |
| Saent Holding Ltd., AKA Saent | 4 |
1 |
| Yulong Computer Telecommunication Scientific (Shenzhen) Co., Ltd. | 1240 |
1 |
| Telecomunicações de São Paulo S/A - Telesp | 1 |
1 |
| Cirotta Tech Ltd | 2 |
1 |
| Other owners | 0 |