- 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: 10204
10-year publication summary
|
88
|
40
|
32
|
23
|
14
|
16
|
7
|
4
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 115187 |
1229 |
| ZTE Corporation | 42934 |
622 |
| Cisco Technology, Inc. | 22099 |
523 |
| Telefonaktiebolaget LM Ericsson (publ) | 28460 |
502 |
| NEC Corporation | 36225 |
383 |
| Qualcomm Incorporated | 87191 |
305 |
| Alcatel Lucent | 4490 |
197 |
| Nokia Corporation | 5428 |
179 |
| Samsung Electronics Co., Ltd. | 148649 |
157 |
| Ericsson | 21957 |
153 |
| Juniper Networks, Inc. | 3758 |
129 |
| Intel Corporation | 46703 |
123 |
| Fujitsu Limited | 17674 |
123 |
| LG Electronics Inc. | 73619 |
112 |
| International Business Machines Corporation | 61694 |
100 |
| Avago Technologies International Sales Pte. Limited | 8677 |
99 |
| Panasonic Corporation | 19985 |
94 |
| Nokia Inc. | 1401 |
93 |
| Lucent Technologies Inc. | 651 |
83 |
| France Telecom | 1161 |
82 |
| Other owners | 4916 |