- 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: 222
10-year publication summary
|
9
|
8
|
16
|
15
|
9
|
26
|
17
|
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. | 121789 |
41 |
| ZTE Corporation | 43927 |
23 |
| Zomedica Inc. | 154 |
9 |
| Marvell Asia PTE, Ltd. | 6327 |
5 |
| Telefonaktiebolaget LM Ericsson (publ) | 28730 |
5 |
| Hewlett-Packard Development Company, L.P. | 25287 |
4 |
| Hangzhou H3C Technologies Co., Ltd. | 376 |
4 |
| International Business Machines Corporation | 62378 |
3 |
| Guangzhou Shiyuan Electronics Co., Ltd. | 937 |
3 |
| Shanghai Zhaoxin Semiconductor Co., Ltd. | 183 |
3 |
| BlackBerry Limited | 4899 |
2 |
| Siemens Canada Limited | 88 |
2 |
| AT&T Intellectual Property I, L.P. | 9967 |
2 |
| Ericsson | 22469 |
2 |
| Texas Instruments Incorporated | 19646 |
2 |
| Marvell International Ltd. | 1116 |
2 |
| Amazon Technologies, Inc. | 27949 |
2 |
| Huawei Device Co., Ltd. | 2740 |
2 |
| BCE Inc. | 342 |
2 |
| Google LLC | 44247 |
2 |
| Other owners | 102 |