- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 12/02 - Data switching networks Details
Patent holdings for IPC class H04L 12/02
Total number of patents in this class: 225
10-year publication summary
|
8
|
8
|
15
|
14
|
8
|
22
|
14
|
11
|
13
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 119240 |
42 |
| ZTE Corporation | 43486 |
23 |
| Zomedica Inc. | 149 |
9 |
| Marvell Asia PTE, Ltd. | 6367 |
5 |
| Telefonaktiebolaget LM Ericsson (publ) | 28564 |
5 |
| Hewlett-Packard Development Company, L.P. | 25415 |
4 |
| Hangzhou H3C Technologies Co., Ltd. | 378 |
4 |
| International Business Machines Corporation | 62111 |
3 |
| Guangzhou Shiyuan Electronics Co., Ltd. | 938 |
3 |
| Shanghai Zhaoxin Semiconductor Co., Ltd. | 178 |
3 |
| BlackBerry Limited | 5097 |
2 |
| Siemens Canada Limited | 88 |
2 |
| AT&T Intellectual Property I, L.P. | 9827 |
2 |
| Ericsson | 22230 |
2 |
| Texas Instruments Incorporated | 19595 |
2 |
| Marvell International Ltd. | 1129 |
2 |
| Amazon Technologies, Inc. | 27626 |
2 |
| Huawei Device Co., Ltd. | 2753 |
2 |
| BCE Inc. | 357 |
2 |
| Google LLC | 43621 |
2 |
| Other owners | 104 |