- All sections
- H - Electricity
- H04J - Multiplex communication
- H04J 3/18 - Time-division multiplex systems using frequency compression and subsequent expansion of the individual signals
Patent holdings for IPC class H04J 3/18
Total number of patents in this class: 138
10-year publication summary
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1
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3
|
1
|
4
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0
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1
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0
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0
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0
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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
|
|---|---|---|
| Cisco Technology, Inc. | 19412 |
8 |
| Samsung Electronics Co., Ltd. | 139302 |
6 |
| Marvell Asia PTE, Ltd. | 6566 |
6 |
| Cavium International | 5170 |
6 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4810 |
5 |
| Hewlett Packard Enterprise Development LP | 10650 |
5 |
| Qualcomm Incorporated | 82009 |
4 |
| CA, Inc. | 2311 |
4 |
| The Boeing Company | 19915 |
3 |
| AT&T Intellectual Property I, L.P. | 9345 |
3 |
| Interdigital Technology Corporation | 973 |
3 |
| Time Warner Cable Enterprises LLC | 921 |
3 |
| Apple Inc. | 52845 |
2 |
| LG Electronics Inc. | 71074 |
2 |
| NEC Corporation | 34467 |
2 |
| Ericsson | 21171 |
2 |
| Intel Corporation | 46153 |
2 |
| Huawei Technologies Co., Ltd. | 106915 |
2 |
| ZTE Corporation | 41096 |
2 |
| Citrix Systems, Inc. | 3713 |
2 |
| Other owners | 66 |