- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 45/42 - Centralised routing
Patent holdings for IPC class H04L 45/42
Total number of patents in this class: 915
10-year publication summary
|
0
|
2
|
3
|
5
|
42
|
90
|
227
|
239
|
147
|
120
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 22104 |
92 |
| Hewlett Packard Enterprise Development LP | 10767 |
83 |
| Huawei Technologies Co., Ltd. | 116134 |
82 |
| VMware LLC | 6830 |
74 |
| Juniper Networks, Inc. | 3778 |
64 |
| Nippon Telegraph and Telephone Corporation | 16254 |
31 |
| Arista Networks, Inc. | 1159 |
23 |
| Oracle International Corporation | 13130 |
16 |
| Amazon Technologies, Inc. | 27270 |
16 |
| Microsoft Technology Licensing, LLC | 54366 |
16 |
| VeloCloud Networks, LLC | 117 |
14 |
| Level 3 Communications, LLC | 1280 |
13 |
| AT&T Intellectual Property I, L.P. | 9686 |
12 |
| Ericsson | 22018 |
11 |
| Mellanox Technologies Ltd. | 1486 |
11 |
| Ciena Corporation | 2061 |
10 |
| Sumitomo Electric Industries, Ltd. | 15802 |
9 |
| Sumitomo Wiring Systems, Ltd. | 10578 |
9 |
| AutoNetworks Technologies, Ltd. | 6761 |
9 |
| International Business Machines Corporation | 61759 |
8 |
| Other owners | 312 |