- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 12/721 - Routing procedures, e.g. shortest path routing, source routing, link state routing or distance vector routing
Patent holdings for IPC class H04L 12/721
Total number of patents in this class: 5921
10-year publication summary
|
925
|
824
|
837
|
701
|
425
|
138
|
25
|
4
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 22638 |
697 |
| Huawei Technologies Co., Ltd. | 125107 |
537 |
| VMware LLC | 6968 |
253 |
| Ericsson | 23107 |
200 |
| Juniper Networks, Inc. | 3358 |
188 |
| Hewlett Packard Enterprise Development LP | 11551 |
158 |
| Futurewei Technologies, Inc. | 3788 |
130 |
| ZTE Corporation | 44302 |
129 |
| Telefonaktiebolaget LM Ericsson (publ) | 29000 |
123 |
| Intel Corporation | 46313 |
117 |
| International Business Machines Corporation | 62847 |
103 |
| Microsoft Technology Licensing, LLC | 54661 |
96 |
| NEC Corporation | 37491 |
81 |
| AT&T Intellectual Property I, L.P. | 10055 |
77 |
| Amazon Technologies, Inc. | 28299 |
76 |
| Dell Products L.P. | 17235 |
69 |
| Fujitsu Limited | 16807 |
58 |
| Ciena Corporation | 2210 |
55 |
| Google LLC | 44850 |
53 |
| Arista Networks, Inc. | 1274 |
51 |
| Other owners | 2670 |