- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 12/70 - Packet switching systems
Patent holdings for IPC class H04L 12/70
Total number of patents in this class: 2893
10-year publication summary
|
242
|
215
|
251
|
271
|
222
|
175
|
56
|
32
|
3
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 36934 |
394 |
| Nippon Telegraph and Telephone Corporation | 15922 |
385 |
| Huawei Technologies Co., Ltd. | 123282 |
329 |
| ZTE Corporation | 44159 |
103 |
| Mitsubishi Electric Corporation | 47971 |
58 |
| Telefonaktiebolaget LM Ericsson (publ) | 28744 |
52 |
| Fujitsu Limited | 16862 |
51 |
| NTT DoCoMo, Inc. | 14659 |
51 |
| Hitachi, Ltd. | 16071 |
48 |
| Cisco Technology, Inc. | 22491 |
48 |
| Sony Corporation | 30208 |
38 |
| Intel Corporation | 47102 |
34 |
| Ericsson | 22660 |
32 |
| Hangzhou H3C Technologies Co., Ltd. | 374 |
31 |
| Hewlett Packard Enterprise Development LP | 11042 |
28 |
| Panasonic Corporation | 19060 |
27 |
| International Business Machines Corporation | 62621 |
25 |
| Samsung Electronics Co., Ltd. | 157557 |
24 |
| Qualcomm Incorporated | 91997 |
21 |
| Google LLC | 44482 |
21 |
| Other owners | 1093 |