- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 5/04 - Arrangements for indicating calls or supervising connections for calling or clearing
Patent holdings for IPC class H04M 5/04
Total number of patents in this class: 4
10-year publication summary
0
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0
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1
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1
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0
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0
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0
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0
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0
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0
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2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
ZTE Corporation | 39218 |
2 |
LG Electronics Inc. | 69257 |
1 |
T-Mobile USA, Inc. | 3668 |
1 |
Other owners | 0 |