- 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: 8628
10-year publication summary
|
40
|
32
|
23
|
14
|
16
|
7
|
4
|
1
|
0
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 125590 |
1082 |
| ZTE Corporation | 44368 |
605 |
| Cisco Technology, Inc. | 22668 |
438 |
| Telefonaktiebolaget LM Ericsson (publ) | 29015 |
426 |
| NEC Corporation | 37563 |
371 |
| Qualcomm Incorporated | 93957 |
235 |
| Alcatel Lucent | 4277 |
169 |
| Hewlett Packard Enterprise Development LP | 12492 |
163 |
| Ericsson | 23125 |
140 |
| Samsung Electronics Co., Ltd. | 159755 |
132 |
| Fujitsu Limited | 16814 |
111 |
| Nokia Corporation | 4600 |
101 |
| Intel Corporation | 46342 |
94 |
| LG Electronics Inc. | 76328 |
90 |
| International Business Machines Corporation | 62871 |
90 |
| Avago Technologies International Sales Pte. Limited | 8518 |
84 |
| Panasonic Corporation | 18572 |
78 |
| Nokia Siemens Networks Oy | 1510 |
63 |
| Lucent Technologies Inc. | 371 |
52 |
| Microsoft Technology Licensing, LLC | 54706 |
52 |
| Other owners | 4052 |