- 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: 237
10-year publication summary
|
0
|
1
|
1
|
2
|
14
|
24
|
51
|
55
|
56
|
21
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 19845 |
12 |
| Huawei Technologies Co., Ltd. | 111764 |
8 |
| Microsoft Technology Licensing, LLC | 53607 |
7 |
| Google LLC | 42004 |
7 |
| International Business Machines Corporation | 61185 |
6 |
| Cyara Solutions Pty Ltd | 69 |
6 |
| Fidelity Information Services, LLC | 580 |
6 |
| Keysight Technologies, Inc. | 1196 |
6 |
| Splunk Inc. | 1250 |
6 |
| Juniper Networks, Inc. | 3720 |
5 |
| Nippon Telegraph and Telephone Corporation | 17260 |
5 |
| CenturyLink Intellectual Property LLC | 1234 |
5 |
| DISH Wireless L.L.C. | 1093 |
5 |
| Samsung Electronics Co., Ltd. | 145025 |
4 |
| AT&T Intellectual Property I, L.P. | 9494 |
4 |
| Amazon Technologies, Inc. | 26551 |
4 |
| Hewlett Packard Enterprise Development LP | 10714 |
4 |
| NetScout Systems, Inc. | 246 |
4 |
| Spirent Communications, Inc. | 137 |
4 |
| T-Mobile USA, Inc. | 4066 |
4 |
| Other owners | 125 |