- 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: 23
10-year publication summary
|
0
|
0
|
1
|
1
|
0
|
0
|
1
|
4
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AT&T Mobility II LLC | 1897 |
2 |
| Charter Communications Operating, LLC | 1637 |
2 |
| Dolby International AB | 1015 |
2 |
| Dolby Laboratories Licensing Corporation | 4391 |
2 |
| Motorola Solutions, Inc. | 4568 |
1 |
| Innovium, Inc. | 140 |
1 |
| Institut Polytechnique de Bordeaux | 441 |
1 |
| Kabushiki Kaisha Audio-Technica | 120 |
1 |
| Medical IP Holdings, LP | 4 |
1 |
| Queen Mary University of London | 267 |
1 |
| RKF Engineering Solutions, LLC | 28 |
1 |
| Universite Bordeaux Segalen | 27 |
1 |
| Universite de Bordeaux 1 | 53 |
1 |
| NXP USA, Inc. | 4415 |
1 |
| Centre National de La Recherche Scientifique (cnrs) | 3001 |
1 |
| Telefonaktiebolaget LM Ericsson (publ) | 29015 |
1 |
| EPOS Group A/S | 112 |
1 |
| Lone Star SCM Systems, LP | 4 |
1 |
| Dolby International AB | 939 |
1 |
| Other owners | 0 |