- 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: 29023
10-year publication summary
|
1961
|
1764
|
1812
|
1796
|
1605
|
1255
|
1103
|
985
|
821
|
496
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 22033 |
1248 |
| Huawei Technologies Co., Ltd. | 114320 |
1176 |
| Samsung Electronics Co., Ltd. | 147983 |
990 |
| LG Electronics Inc. | 73690 |
553 |
| Qualcomm Incorporated | 86867 |
494 |
| Google LLC | 42673 |
475 |
| Ericsson | 21932 |
471 |
| ZTE Corporation | 42789 |
371 |
| Avago Technologies International Sales Pte. Limited | 8683 |
364 |
| Juniper Networks, Inc. | 3746 |
361 |
| Intel Corporation | 47239 |
360 |
| NEC Corporation | 36124 |
272 |
| Hewlett Packard Enterprise Development LP | 10756 |
271 |
| Sumitomo Electric Industries, Ltd. | 15659 |
269 |
| ARRIS Enterprises LLC | 3473 |
262 |
| Apple Inc. | 55640 |
258 |
| Mitsubishi Electric Corporation | 46590 |
256 |
| Sumitomo Wiring Systems, Ltd. | 10494 |
254 |
| AutoNetworks Technologies, Ltd. | 6688 |
250 |
| Microsoft Technology Licensing, LLC | 54000 |
247 |
| Other owners | 19821 |