- 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: 12589
10-year publication summary
|
145
|
88
|
40
|
32
|
23
|
14
|
16
|
7
|
3
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 100781 |
1345 |
| Cisco Technology, Inc. | 18858 |
644 |
| ZTE Corporation | 39218 |
638 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
619 |
| NEC Corporation | 32703 |
412 |
| Qualcomm Incorporated | 76576 |
390 |
| Nokia Corporation | 6965 |
332 |
| Alcatel Lucent | 4720 |
228 |
| Intel Corporation | 45621 |
200 |
| Samsung Electronics Co., Ltd. | 131630 |
190 |
| Ericsson | 20417 |
165 |
| Nokia Inc. | 2036 |
165 |
| Juniper Networks, Inc. | 3556 |
147 |
| Fujitsu Limited | 19265 |
142 |
| LG Electronics Inc. | 69257 |
139 |
| Avago Technologies International Sales Pte. Limited | 9260 |
134 |
| Siemens AG | 24990 |
127 |
| Koninklijke Philips Electronics N.V. | 13133 |
124 |
| Motorola, Inc. | 2873 |
118 |
| International Business Machines Corporation | 60644 |
114 |
| Other owners | 6216 |