- 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: 29105
10-year publication summary
|
1961
|
1764
|
1812
|
1796
|
1605
|
1254
|
1103
|
983
|
817
|
462
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 21991 |
1254 |
| Huawei Technologies Co., Ltd. | 113689 |
1178 |
| Samsung Electronics Co., Ltd. | 147501 |
993 |
| LG Electronics Inc. | 73531 |
553 |
| Qualcomm Incorporated | 86346 |
498 |
| Google LLC | 42540 |
475 |
| Ericsson | 21888 |
471 |
| ZTE Corporation | 42693 |
372 |
| Avago Technologies International Sales Pte. Limited | 8714 |
367 |
| Juniper Networks, Inc. | 3739 |
364 |
| Intel Corporation | 47143 |
362 |
| NEC Corporation | 35935 |
272 |
| Hewlett Packard Enterprise Development LP | 10740 |
272 |
| Sumitomo Electric Industries, Ltd. | 15593 |
269 |
| ARRIS Enterprises LLC | 3475 |
261 |
| Apple Inc. | 55387 |
258 |
| Mitsubishi Electric Corporation | 46397 |
255 |
| Sumitomo Wiring Systems, Ltd. | 10444 |
254 |
| AutoNetworks Technologies, Ltd. | 6648 |
250 |
| Microsoft Technology Licensing, LLC | 53891 |
247 |
| Other owners | 19880 |