- 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: 258
10-year publication summary
|
0
|
0
|
1
|
2
|
13
|
23
|
49
|
54
|
56
|
39
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 22033 |
20 |
| Huawei Technologies Co., Ltd. | 114320 |
8 |
| Microsoft Technology Licensing, LLC | 54000 |
7 |
| Google LLC | 42673 |
7 |
| DISH Wireless L.L.C. | 1182 |
7 |
| International Business Machines Corporation | 61596 |
6 |
| CenturyLink Intellectual Property LLC | 1251 |
6 |
| Cyara Solutions Pty Ltd | 70 |
6 |
| Fidelity Information Services, LLC | 603 |
6 |
| Keysight Technologies, Inc. | 1200 |
6 |
| Juniper Networks, Inc. | 3746 |
5 |
| Nippon Telegraph and Telephone Corporation | 16975 |
5 |
| Samsung Electronics Co., Ltd. | 147983 |
4 |
| AT&T Intellectual Property I, L.P. | 9599 |
4 |
| Amazon Technologies, Inc. | 27025 |
4 |
| Hewlett Packard Enterprise Development LP | 10756 |
4 |
| NetScout Systems, Inc. | 254 |
4 |
| Spirent Communications, Inc. | 136 |
4 |
| T-Mobile USA, Inc. | 4178 |
4 |
| Sandvine Corporation | 186 |
4 |
| Other owners | 137 |