- 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 |