- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 41/12 - Discovery or management of network topologies
Patent holdings for IPC class H04L 41/12
Total number of patents in this class: 2789
10-year publication summary
|
3
|
14
|
38
|
69
|
214
|
393
|
579
|
578
|
499
|
263
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 21991 |
223 |
| Huawei Technologies Co., Ltd. | 113689 |
126 |
| VMware LLC | 6935 |
91 |
| Juniper Networks, Inc. | 3739 |
78 |
| Intel Corporation | 47143 |
63 |
| Oracle International Corporation | 13010 |
61 |
| Dell Products L.P. | 14658 |
55 |
| Amazon Technologies, Inc. | 26891 |
51 |
| Microsoft Technology Licensing, LLC | 53891 |
50 |
| AT&T Intellectual Property I, L.P. | 9576 |
42 |
| Hewlett Packard Enterprise Development LP | 10740 |
42 |
| Nippon Telegraph and Telephone Corporation | 17371 |
36 |
| International Business Machines Corporation | 61433 |
34 |
| Level 3 Communications, LLC | 1272 |
32 |
| ServiceNow, Inc. | 1904 |
31 |
| Ericsson | 21888 |
30 |
| ZTE Corporation | 42693 |
30 |
| Google LLC | 42540 |
29 |
| Ciena Corporation | 2039 |
22 |
| Red Hat, Inc. | 3909 |
21 |
| Other owners | 1642 |