- 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: 2881
10-year publication summary
|
242
|
215
|
251
|
271
|
222
|
175
|
56
|
32
|
5
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 37563 |
393 |
| Nippon Telegraph and Telephone Corporation | 15898 |
384 |
| Huawei Technologies Co., Ltd. | 125590 |
329 |
| ZTE Corporation | 44368 |
102 |
| Mitsubishi Electric Corporation | 48508 |
58 |
| Telefonaktiebolaget LM Ericsson (publ) | 29015 |
52 |
| NTT DoCoMo, Inc. | 15137 |
50 |
| Fujitsu Limited | 16814 |
49 |
| Cisco Technology, Inc. | 22668 |
48 |
| Hitachi, Ltd. | 16237 |
47 |
| Sony Corporation | 29876 |
38 |
| Intel Corporation | 46342 |
34 |
| Hewlett Packard Enterprise Development LP | 12492 |
32 |
| Ericsson | 23125 |
31 |
| Hangzhou H3C Technologies Co., Ltd. | 371 |
31 |
| Samsung Electronics Co., Ltd. | 159755 |
24 |
| International Business Machines Corporation | 62871 |
24 |
| Panasonic Corporation | 18572 |
22 |
| Qualcomm Incorporated | 93957 |
21 |
| Google LLC | 44941 |
21 |
| Other owners | 1091 |