- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 12/751 - Topology update or discovery
Patent holdings for IPC class H04L 12/751
Total number of patents in this class: 3258
10-year publication summary
|
577
|
533
|
477
|
462
|
381
|
237
|
79
|
15
|
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. | 19734 |
389 |
| Huawei Technologies Co., Ltd. | 111449 |
312 |
| Juniper Networks, Inc. | 3704 |
156 |
| VMware LLC | 6914 |
121 |
| Ericsson | 21642 |
94 |
| Futurewei Technologies, Inc. | 3751 |
79 |
| ZTE Corporation | 42101 |
76 |
| Hewlett Packard Enterprise Development LP | 10711 |
73 |
| Oracle International Corporation | 12921 |
70 |
| Intel Corporation | 46833 |
63 |
| International Business Machines Corporation | 61144 |
61 |
| Telefonaktiebolaget LM Ericsson (publ) | 27862 |
59 |
| Amazon Technologies, Inc. | 26528 |
58 |
| Google LLC | 41934 |
47 |
| Microsoft Technology Licensing, LLC | 53577 |
45 |
| AT&T Intellectual Property I, L.P. | 9486 |
43 |
| NEC Corporation | 35471 |
43 |
| Dell Products L.P. | 14160 |
42 |
| Fujitsu Limited | 18354 |
35 |
| Level 3 Communications, LLC | 1258 |
35 |
| Other owners | 1357 |