- 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: 2668
10-year publication summary
|
25
|
28
|
51
|
86
|
235
|
390
|
581
|
580
|
493
|
163
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 19599 |
209 |
| Huawei Technologies Co., Ltd. | 110803 |
117 |
| VMware LLC | 6906 |
92 |
| Juniper Networks, Inc. | 3701 |
73 |
| Intel Corporation | 46678 |
60 |
| Oracle International Corporation | 12905 |
56 |
| Dell Products L.P. | 14048 |
53 |
| Amazon Technologies, Inc. | 26440 |
49 |
| Microsoft Technology Licensing, LLC | 53472 |
49 |
| AT&T Intellectual Property I, L.P. | 9459 |
40 |
| Hewlett Packard Enterprise Development LP | 10694 |
40 |
| Nippon Telegraph and Telephone Corporation | 17109 |
36 |
| International Business Machines Corporation | 60907 |
33 |
| Level 3 Communications, LLC | 1251 |
32 |
| Ericsson | 21565 |
30 |
| ServiceNow, Inc. | 1872 |
30 |
| ZTE Corporation | 41969 |
28 |
| Google LLC | 41766 |
27 |
| Ciena Corporation | 2016 |
22 |
| Red Hat, Inc. | 3891 |
21 |
| Other owners | 1571 |