- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 5/04 - Channels characterised by the type of signal the signals being represented by different amplitudes or polarities, e.g. quadriplex
Patent holdings for IPC class H04L 5/04
Total number of patents in this class: 160
10-year publication summary
|
15
|
15
|
13
|
10
|
8
|
9
|
9
|
8
|
9
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 131630 |
10 |
| Huawei Technologies Co., Ltd. | 100781 |
9 |
| Eutelsat S a | 65 |
8 |
| Qualcomm Incorporated | 76576 |
7 |
| LG Electronics Inc. | 69257 |
5 |
| NEC Corporation | 32703 |
5 |
| SnapTrack, Inc. | 650 |
4 |
| Vivo Mobile Communication Co., Ltd. | 9833 |
4 |
| ENK Wireless, Inc. | 29 |
4 |
| ZTE Corporation | 39218 |
3 |
| ECI Telecom Ltd. | 162 |
3 |
| MaxLinear Asia Singapore Private Limited | 106 |
3 |
| Qualcomm Flarion Technologies, Inc. | 22 |
2 |
| Sony Corporation | 32931 |
2 |
| Intel Corporation | 45621 |
2 |
| Industrial Technology Research Institute | 4898 |
2 |
| Kyocera Corporation | 12735 |
2 |
| California Institute of Technology | 3884 |
2 |
| Intellectual Ventures I LLC | 328 |
2 |
| Rambus Inc. | 2314 |
2 |
| Other owners | 79 |