- All sections
- H - Electricity
- H04B - Transmission
- H04B 1/64 - Volume compression or expansion arrangements
Patent holdings for IPC class H04B 1/64
Total number of patents in this class: 24
10-year publication summary
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0
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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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1
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4
|
0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AT&T Mobility II LLC | 1872 |
2 |
| Charter Communications Operating, LLC | 1430 |
2 |
| Dolby International AB | 1028 |
2 |
| Dolby Laboratories Licensing Corporation | 4212 |
2 |
| Motorola Solutions, Inc. | 4509 |
1 |
| Innovium, Inc. | 138 |
1 |
| Institut Polytechnique de Bordeaux | 410 |
1 |
| Kabushiki Kaisha Audio-Technica | 123 |
1 |
| Medical IP Holdings, LP | 4 |
1 |
| Queen Mary University of London | 249 |
1 |
| RKF Engineering Solutions, LLC | 28 |
1 |
| Universite Bordeaux Segalen | 27 |
1 |
| Universite de Bordeaux 1 | 54 |
1 |
| NXP USA, Inc. | 4361 |
1 |
| Centre National de La Recherche Scientifique (cnrs) | 3084 |
1 |
| Telefonaktiebolaget LM Ericsson (publ) | 28470 |
1 |
| EPOS Group A/S | 114 |
1 |
| Lone Star SCM Systems, LP | 4 |
1 |
| Dolby International AB | 726 |
1 |
| Securitas Technology Corporation | 26 |
1 |
| Other owners | 0 |