- 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: 2739
10-year publication summary
|
25
|
27
|
51
|
85
|
234
|
392
|
583
|
586
|
500
|
214
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 19929 |
213 |
| Huawei Technologies Co., Ltd. | 112690 |
123 |
| VMware LLC | 6939 |
98 |
| Juniper Networks, Inc. | 3735 |
76 |
| Intel Corporation | 47005 |
63 |
| Oracle International Corporation | 12946 |
57 |
| Dell Products L.P. | 14530 |
53 |
| Amazon Technologies, Inc. | 26716 |
50 |
| Microsoft Technology Licensing, LLC | 53729 |
50 |
| AT&T Intellectual Property I, L.P. | 9515 |
42 |
| Hewlett Packard Enterprise Development LP | 10728 |
42 |
| Nippon Telegraph and Telephone Corporation | 17346 |
36 |
| International Business Machines Corporation | 61257 |
33 |
| Level 3 Communications, LLC | 1263 |
32 |
| ServiceNow, Inc. | 1893 |
31 |
| Ericsson | 21759 |
30 |
| ZTE Corporation | 42486 |
30 |
| Google LLC | 42261 |
28 |
| Ciena Corporation | 2034 |
22 |
| Red Hat, Inc. | 3898 |
21 |
| Other owners | 1609 |