- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 15/18 - Discriminative metering according to duration of call
Patent holdings for IPC class H04M 15/18
Total number of patents in this class: 10
10-year publication summary
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0
|
1
|
1
|
0
|
1
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0
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0
|
1
|
0
|
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
|
|---|---|---|
| Thryv, Inc. | 326 |
2 |
| AT&T Intellectual Property I, L.P. | 9886 |
1 |
| ZTE Corporation | 39218 |
1 |
| Comsquare Co., Ltd. | 7 |
1 |
| Hach Company | 403 |
1 |
| Japan Communications, Inc. | 26 |
1 |
| Starlogik IP LLC | 18 |
1 |
| Voip-pal.com, Inc. | 35 |
1 |
| InterDigital CE Patent Holdings, SAS | 1017 |
1 |
| Other owners | 0 |