- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 43/50 - Testing arrangements
Patent holdings for IPC class H04L 43/50
Total number of patents in this class: 896
10-year publication summary
|
5
|
4
|
22
|
23
|
59
|
115
|
199
|
223
|
174
|
62
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 19530 |
38 |
| Keysight Technologies, Inc. | 1190 |
31 |
| PassiveLogic, Inc. | 186 |
21 |
| Juniper Networks, Inc. | 3668 |
19 |
| Huawei Technologies Co., Ltd. | 108912 |
18 |
| Microsoft Technology Licensing, LLC | 53230 |
17 |
| Accedian Networks Inc. | 175 |
17 |
| ISCO International, LLC | 224 |
13 |
| T-Mobile USA, Inc. | 3979 |
13 |
| ZTE Corporation | 41605 |
12 |
| International Business Machines Corporation | 60519 |
11 |
| Oracle International Corporation | 12797 |
11 |
| Spirent Communications, Inc. | 137 |
11 |
| Hewlett Packard Enterprise Development LP | 10667 |
10 |
| Comcast Cable Communications, LLC | 4490 |
10 |
| Cyara Solutions Pty Ltd | 66 |
10 |
| AT&T Intellectual Property I, L.P. | 9393 |
9 |
| Amazon Technologies, Inc. | 26226 |
9 |
| Nippon Telegraph and Telephone Corporation | 16786 |
9 |
| Palo Alto Networks, Inc. | 1171 |
9 |
| Other owners | 598 |