- 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: 987
10-year publication summary
|
1
|
1
|
12
|
15
|
54
|
113
|
199
|
222
|
179
|
134
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 19961 |
44 |
| Keysight Technologies, Inc. | 1200 |
35 |
| PassiveLogic, Inc. | 214 |
23 |
| Huawei Technologies Co., Ltd. | 113064 |
19 |
| Juniper Networks, Inc. | 3737 |
19 |
| Microsoft Technology Licensing, LLC | 53786 |
19 |
| Accedian Networks Inc. | 175 |
17 |
| International Business Machines Corporation | 61305 |
14 |
| Telefonaktiebolaget LM Ericsson (publ) | 28095 |
14 |
| Oracle International Corporation | 12947 |
13 |
| ZTE Corporation | 42569 |
13 |
| ISCO International, LLC | 236 |
13 |
| T-Mobile USA, Inc. | 4123 |
13 |
| Comcast Cable Communications, LLC | 4713 |
11 |
| Spirent Communications, Inc. | 137 |
11 |
| AT&T Intellectual Property I, L.P. | 9533 |
10 |
| Hewlett Packard Enterprise Development LP | 10727 |
10 |
| Cyara Solutions Pty Ltd | 69 |
10 |
| Amazon Technologies, Inc. | 26762 |
9 |
| Nippon Telegraph and Telephone Corporation | 17362 |
9 |
| Other owners | 661 |