- 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: 6013
10-year publication summary
|
1034
|
925
|
824
|
838
|
705
|
437
|
146
|
31
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 19303 |
707 |
| Huawei Technologies Co., Ltd. | 106382 |
540 |
| Juniper Networks, Inc. | 3622 |
213 |
| Ericsson | 21054 |
201 |
| Nicira, Inc. | 1200 |
188 |
| ZTE Corporation | 41003 |
135 |
| Futurewei Technologies, Inc. | 3722 |
131 |
| Hewlett Packard Enterprise Development LP | 10710 |
126 |
| Telefonaktiebolaget LM Ericsson (publ) | 27359 |
123 |
| NEC Corporation | 34296 |
120 |
| International Business Machines Corporation | 60067 |
103 |
| Intel Corporation | 46091 |
98 |
| Microsoft Technology Licensing, LLC | 52895 |
97 |
| VMware LLC | 5560 |
81 |
| AT&T Intellectual Property I, L.P. | 9324 |
77 |
| Amazon Technologies, Inc. | 25791 |
77 |
| Dell Products L.P. | 12912 |
69 |
| Fujitsu Limited | 18420 |
68 |
| Ciena Corporation | 1944 |
55 |
| Google LLC | 40708 |
54 |
| Other owners | 2750 |