- 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: 887
10-year publication summary
|
0
|
2
|
3
|
5
|
42
|
90
|
223
|
239
|
147
|
95
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 21998 |
86 |
| Huawei Technologies Co., Ltd. | 113853 |
81 |
| Hewlett Packard Enterprise Development LP | 10744 |
78 |
| VMware LLC | 6822 |
74 |
| Juniper Networks, Inc. | 3745 |
61 |
| Nippon Telegraph and Telephone Corporation | 17381 |
33 |
| Arista Networks, Inc. | 1129 |
22 |
| Oracle International Corporation | 13014 |
16 |
| Amazon Technologies, Inc. | 26938 |
15 |
| Microsoft Technology Licensing, LLC | 53910 |
15 |
| VeloCloud Networks, LLC | 115 |
14 |
| Level 3 Communications, LLC | 1272 |
13 |
| AT&T Intellectual Property I, L.P. | 9588 |
11 |
| Ericsson | 21902 |
11 |
| Ciena Corporation | 2037 |
11 |
| Sumitomo Electric Industries, Ltd. | 15609 |
9 |
| Sumitomo Wiring Systems, Ltd. | 10459 |
9 |
| AutoNetworks Technologies, Ltd. | 6657 |
9 |
| Mellanox Technologies Ltd. | 1408 |
9 |
| Futurewei Technologies, Inc. | 3758 |
8 |
| Other owners | 302 |