- 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: 29207
10-year publication summary
|
1996
|
1813
|
1852
|
1831
|
1637
|
1283
|
1120
|
993
|
824
|
410
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 19950 |
1266 |
| Huawei Technologies Co., Ltd. | 113006 |
1191 |
| Samsung Electronics Co., Ltd. | 146534 |
991 |
| LG Electronics Inc. | 73210 |
550 |
| Qualcomm Incorporated | 85550 |
499 |
| Google LLC | 42292 |
473 |
| Ericsson | 21778 |
471 |
| ZTE Corporation | 42552 |
374 |
| Avago Technologies International Sales Pte. Limited | 8752 |
370 |
| Juniper Networks, Inc. | 3737 |
368 |
| Intel Corporation | 47013 |
365 |
| NEC Corporation | 35734 |
274 |
| Hewlett Packard Enterprise Development LP | 10727 |
272 |
| Sumitomo Electric Industries, Ltd. | 15511 |
267 |
| ARRIS Enterprises LLC | 3433 |
260 |
| Apple Inc. | 55017 |
259 |
| Mitsubishi Electric Corporation | 46160 |
252 |
| Sumitomo Wiring Systems, Ltd. | 10376 |
252 |
| AutoNetworks Technologies, Ltd. | 6602 |
248 |
| Microsoft Technology Licensing, LLC | 53739 |
246 |
| Other owners | 19959 |