- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 1/54 - Arrangements wherein a dial or the like generates identifying signals, e.g. in party-line systems
Patent holdings for IPC class H04M 1/54
Total number of patents in this class: 4
10-year publication summary
0
|
1
|
0
|
1
|
1
|
1
|
0
|
0
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0
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
III Holdings 1, LLC | 212 |
3 |
Amulet, Inc. | 10 |
1 |
Other owners | 0 |