- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 43/55 - Testing of service level quality, e.g. simulating service usage
Patent holdings for IPC class H04L 43/55
Total number of patents in this class: 274
10-year publication summary
|
1
|
1
|
2
|
14
|
25
|
51
|
55
|
60
|
48
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 22300 |
21 |
| Huawei Technologies Co., Ltd. | 120453 |
8 |
| Keysight Technologies, Inc. | 1258 |
8 |
| Boost SubscriberCo L.L.C. | 876 |
8 |
| Microsoft Technology Licensing, LLC | 54241 |
7 |
| Google LLC | 43852 |
7 |
| International Business Machines Corporation | 62251 |
6 |
| Juniper Networks, Inc. | 3779 |
6 |
| CenturyLink Intellectual Property LLC | 1281 |
6 |
| Cyara Solutions Pty Ltd | 71 |
6 |
| Fidelity Information Services, LLC | 636 |
6 |
| Nippon Telegraph and Telephone Corporation | 15996 |
5 |
| Telefonaktiebolaget LM Ericsson (publ) | 28623 |
5 |
| Samsung Electronics Co., Ltd. | 154120 |
4 |
| AT&T Intellectual Property I, L.P. | 9859 |
4 |
| Amazon Technologies, Inc. | 27726 |
4 |
| Hewlett Packard Enterprise Development LP | 10897 |
4 |
| NetScout Systems, Inc. | 267 |
4 |
| Spirent Communications, Inc. | 88 |
4 |
| T-Mobile USA, Inc. | 4414 |
4 |
| Other owners | 147 |