- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 1/515 - Devices for calling a subscriber by generating or selecting signals other than trains of pulses of similar shape, or signals other than currents of one or more different frequencies, e.g. generation of dc signals of alternating polarity, coded pulses or impedance dialling
Patent holdings for IPC class H04M 1/515
Total number of patents in this class: 1
10-year publication summary
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
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|---|---|---|
| Intel Corporation | 45621 |
1 |
| Other owners | 0 |