- 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: 2984
10-year publication summary
|
294
|
286
|
242
|
215
|
251
|
270
|
212
|
168
|
32
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 32703 |
415 |
| Nippon Telegraph and Telephone Corporation | 14195 |
387 |
| Huawei Technologies Co., Ltd. | 100781 |
335 |
| ZTE Corporation | 39218 |
104 |
| Fujitsu Limited | 19265 |
64 |
| Mitsubishi Electric Corporation | 43934 |
57 |
| NTT DoCoMo, Inc. | 11501 |
56 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
52 |
| Cisco Technology, Inc. | 18858 |
50 |
| Hitachi, Ltd. | 16452 |
48 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
44 |
| Sony Corporation | 32931 |
38 |
| Hangzhou H3C Technologies Co., Ltd. | 388 |
31 |
| Ericsson | 20417 |
30 |
| Panasonic Corporation | 20786 |
29 |
| Intel Corporation | 45621 |
29 |
| Hewlett Packard Enterprise Development LP | 10702 |
28 |
| International Business Machines Corporation | 60644 |
25 |
| Samsung Electronics Co., Ltd. | 131630 |
24 |
| Google LLC | 38759 |
21 |
| Other owners | 1117 |