- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 12/28 - Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
Patent holdings for IPC class H04L 12/28
Total number of patents in this class: 30697
10-year publication summary
1962
|
1997
|
1812
|
1853
|
1830
|
1634
|
1262
|
1063
|
895
|
272
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Cisco Technology, Inc. | 18858 |
1409 |
Huawei Technologies Co., Ltd. | 100781 |
1255 |
Samsung Electronics Co., Ltd. | 131630 |
985 |
LG Electronics Inc. | 69257 |
595 |
Qualcomm Incorporated | 76576 |
536 |
Ericsson | 20417 |
485 |
Google LLC | 38759 |
456 |
Intel Corporation | 45621 |
408 |
Avago Technologies International Sales Pte. Limited | 9260 |
406 |
Juniper Networks, Inc. | 3556 |
388 |
ZTE Corporation | 39218 |
381 |
NEC Corporation | 32703 |
294 |
Hewlett Packard Enterprise Development LP | 10702 |
292 |
Nokia Corporation | 6965 |
270 |
Microsoft Technology Licensing, LLC | 51439 |
260 |
ARRIS Enterprises LLC | 3432 |
254 |
AT&T Intellectual Property I, L.P. | 9886 |
248 |
Apple Inc. | 50209 |
245 |
Mitsubishi Electric Corporation | 43934 |
244 |
Marvell Asia PTE, Ltd. | 6841 |
229 |
Other owners | 21057 |