- 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: 149
10-year publication summary
|
13
|
10
|
8
|
9
|
9
|
8
|
10
|
4
|
3
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 153845 |
10 |
| Huawei Technologies Co., Ltd. | 120098 |
9 |
| Eutelsat S a | 67 |
8 |
| Qualcomm Incorporated | 90221 |
6 |
| ENK Wireless, Inc. | 46 |
6 |
| NEC Corporation | 36616 |
5 |
| LG Electronics Inc. | 74968 |
4 |
| ZTE Corporation | 43598 |
3 |
| ECI Telecom Ltd. | 141 |
3 |
| MaxLinear Asia Singapore Private Limited | 107 |
3 |
| SnapTrack, Inc. | 538 |
3 |
| Vivo Mobile Communication Co., Ltd. | 13285 |
3 |
| Sony Corporation | 30397 |
2 |
| Intel Corporation | 46680 |
2 |
| Industrial Technology Research Institute | 5077 |
2 |
| Kyocera Corporation | 14242 |
2 |
| California Institute of Technology | 4014 |
2 |
| Rambus Inc. | 2225 |
2 |
| Godo Kaisha IP Bridge 1 | 425 |
2 |
| Nokia Technologies Oy | 20297 |
2 |
| Other owners | 70 |