- 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: 29224
10-year publication summary
|
1997
|
1813
|
1854
|
1831
|
1637
|
1286
|
1119
|
990
|
824
|
389
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 19918 |
1268 |
| Huawei Technologies Co., Ltd. | 112438 |
1189 |
| Samsung Electronics Co., Ltd. | 146092 |
991 |
| LG Electronics Inc. | 73021 |
550 |
| Qualcomm Incorporated | 85322 |
499 |
| Google LLC | 42196 |
473 |
| Ericsson | 21747 |
472 |
| ZTE Corporation | 42423 |
375 |
| Juniper Networks, Inc. | 3734 |
370 |
| Avago Technologies International Sales Pte. Limited | 8767 |
369 |
| Intel Corporation | 46962 |
365 |
| NEC Corporation | 35652 |
274 |
| Hewlett Packard Enterprise Development LP | 10727 |
272 |
| Sumitomo Electric Industries, Ltd. | 15483 |
265 |
| ARRIS Enterprises LLC | 3443 |
261 |
| Apple Inc. | 54844 |
260 |
| Mitsubishi Electric Corporation | 46093 |
252 |
| Sumitomo Wiring Systems, Ltd. | 10351 |
250 |
| Microsoft Technology Licensing, LLC | 53720 |
246 |
| AutoNetworks Technologies, Ltd. | 6587 |
246 |
| Other owners | 19977 |