- 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: 279
10-year publication summary
|
1
|
1
|
2
|
14
|
25
|
51
|
55
|
60
|
48
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 22493 |
21 |
| Boost SubscriberCo L.L.C. | 939 |
9 |
| Huawei Technologies Co., Ltd. | 123385 |
8 |
| Keysight Technologies, Inc. | 1263 |
8 |
| Microsoft Technology Licensing, LLC | 54466 |
7 |
| Hewlett Packard Enterprise Development LP | 11493 |
7 |
| Fidelity Information Services, LLC | 656 |
7 |
| Google LLC | 44482 |
7 |
| International Business Machines Corporation | 62634 |
6 |
| CenturyLink Intellectual Property LLC | 1278 |
6 |
| Cyara Solutions Pty Ltd | 71 |
6 |
| Juniper Networks, Inc. | 3365 |
5 |
| Nippon Telegraph and Telephone Corporation | 15924 |
5 |
| Telefonaktiebolaget LM Ericsson (publ) | 28758 |
5 |
| Samsung Electronics Co., Ltd. | 157719 |
4 |
| AT&T Intellectual Property I, L.P. | 9995 |
4 |
| Amazon Technologies, Inc. | 28087 |
4 |
| NetScout Systems, Inc. | 269 |
4 |
| Spirent Communications, Inc. | 89 |
4 |
| T-Mobile USA, Inc. | 4497 |
4 |
| Other owners | 148 |