- 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: 29343
10-year publication summary
|
1997
|
1812
|
1854
|
1831
|
1637
|
1284
|
1115
|
983
|
816
|
298
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 19623 |
1283 |
| Huawei Technologies Co., Ltd. | 110995 |
1203 |
| Samsung Electronics Co., Ltd. | 144143 |
997 |
| LG Electronics Inc. | 72473 |
553 |
| Qualcomm Incorporated | 84501 |
509 |
| Ericsson | 21593 |
472 |
| Google LLC | 41828 |
472 |
| Avago Technologies International Sales Pte. Limited | 8835 |
379 |
| ZTE Corporation | 42015 |
375 |
| Juniper Networks, Inc. | 3701 |
373 |
| Intel Corporation | 46699 |
368 |
| NEC Corporation | 35351 |
274 |
| Hewlett Packard Enterprise Development LP | 10700 |
272 |
| ARRIS Enterprises LLC | 3429 |
260 |
| Apple Inc. | 54479 |
259 |
| Sumitomo Electric Industries, Ltd. | 15344 |
252 |
| Mitsubishi Electric Corporation | 45811 |
251 |
| Microsoft Technology Licensing, LLC | 53512 |
248 |
| Sumitomo Wiring Systems, Ltd. | 10261 |
237 |
| AutoNetworks Technologies, Ltd. | 6515 |
233 |
| Other owners | 20073 |