- 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: 26
10-year publication summary
|
3
|
0
|
0
|
0
|
1
|
1
|
0
|
0
|
1
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AT&T Mobility II LLC | 1982 |
2 |
| Charter Communications Operating, LLC | 1054 |
2 |
| Dolby International AB | 1076 |
2 |
| Dolby Laboratories Licensing Corporation | 3883 |
2 |
| Siemens AG | 24990 |
1 |
| Motorola Solutions, Inc. | 4355 |
1 |
| Coghill, Marvin; Trustees of Metme Communications, a Partnership | 1 |
1 |
| Dolby, Ray M. | 2 |
1 |
| Eberhardt, Alfred F. | 1 |
1 |
| Innovium, Inc. | 123 |
1 |
| Institut Polytechnique de Bordeaux | 356 |
1 |
| Kabushiki Kaisha Audio-Technica | 148 |
1 |
| Medical IP Holdings, LP | 11 |
1 |
| Queen Mary University of London | 212 |
1 |
| RKF Engineering Solutions, LLC | 27 |
1 |
| Universite Bordeaux Segalen | 29 |
1 |
| Universite de Bordeaux 1 | 66 |
1 |
| Centre National de La Recherche Scientifique (cnrs) | 3191 |
1 |
| EPOS Group A/S | 109 |
1 |
| Lone Star SCM Systems, LP | 11 |
1 |
| Other owners | 2 |