- 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: 6176
10-year publication summary
|
941
|
1034
|
925
|
824
|
840
|
709
|
459
|
178
|
37
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 18858 |
717 |
| Huawei Technologies Co., Ltd. | 100781 |
567 |
| Juniper Networks, Inc. | 3556 |
218 |
| Ericsson | 20417 |
215 |
| Nicira, Inc. | 1192 |
190 |
| Futurewei Technologies, Inc. | 3708 |
137 |
| ZTE Corporation | 39218 |
135 |
| Hewlett Packard Enterprise Development LP | 10702 |
131 |
| NEC Corporation | 32703 |
124 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
123 |
| International Business Machines Corporation | 60644 |
116 |
| Intel Corporation | 45621 |
106 |
| Microsoft Technology Licensing, LLC | 51439 |
98 |
| VMware LLC | 6078 |
84 |
| AT&T Intellectual Property I, L.P. | 9886 |
83 |
| Amazon Technologies, Inc. | 24422 |
81 |
| Fujitsu Limited | 19265 |
74 |
| Dell Products L.P. | 11144 |
69 |
| Ciena Corporation | 1927 |
57 |
| Google LLC | 38759 |
54 |
| Other owners | 2797 |