- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 12/56 - Packet switching systems
Patent holdings for IPC class H04L 12/56
Total number of patents in this class: 8874
10-year publication summary
|
40
|
32
|
23
|
14
|
16
|
7
|
4
|
1
|
0
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 123867 |
1109 |
| ZTE Corporation | 44230 |
609 |
| Cisco Technology, Inc. | 22547 |
446 |
| Telefonaktiebolaget LM Ericsson (publ) | 28859 |
437 |
| NEC Corporation | 37135 |
373 |
| Qualcomm Incorporated | 92725 |
242 |
| Alcatel Lucent | 4309 |
171 |
| Ericsson | 22839 |
145 |
| Samsung Electronics Co., Ltd. | 158337 |
135 |
| Nokia Corporation | 4745 |
119 |
| Fujitsu Limited | 16860 |
113 |
| Juniper Networks, Inc. | 3364 |
102 |
| Intel Corporation | 47069 |
96 |
| LG Electronics Inc. | 75807 |
94 |
| International Business Machines Corporation | 62742 |
93 |
| Avago Technologies International Sales Pte. Limited | 8545 |
87 |
| Panasonic Corporation | 18896 |
83 |
| Hewlett Packard Enterprise Development LP | 11508 |
72 |
| Nokia Siemens Networks Oy | 1510 |
63 |
| France Telecom | 913 |
60 |
| Other owners | 4225 |