- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 1/72478 - User interfaces specially adapted for cordless or mobile telephones specially adapted for disabled users for hearing-impaired users
Patent holdings for IPC class H04M 1/72478
Total number of patents in this class: 20
10-year publication summary
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0
|
0
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0
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0
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0
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4
|
9
|
8
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4
|
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
|
|---|---|---|
| Sorenson IP Holdings, LLC | 287 |
8 |
| Ultratec, Inc. | 78 |
4 |
| Motorola Mobility LLC | 2493 |
2 |
| Cochlear Limited | 1619 |
2 |
| Microsoft Technology Licensing, LLC | 51439 |
1 |
| Sonova AG | 1023 |
1 |
| Sivantos Pte. Ltd. | 723 |
1 |
| Eugenious Enterprises, LLC | 3 |
1 |
| Other owners | 0 |