- All sections
- H - Electricity
- H04W - Wireless communication networks
- H04W 12/0431 - Key distribution or pre-distributionKey agreement
Patent holdings for IPC class H04W 12/0431
Total number of patents in this class: 976
10-year publication summary
|
0
|
5
|
15
|
57
|
94
|
125
|
191
|
166
|
160
|
119
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 114984 |
72 |
| Qualcomm Incorporated | 86992 |
70 |
| Ericsson | 21968 |
65 |
| Samsung Electronics Co., Ltd. | 148584 |
41 |
| Apple Inc. | 55916 |
34 |
| Nokia Technologies Oy | 18609 |
27 |
| Cisco Technology, Inc. | 22095 |
25 |
| Brother Industries, Ltd. | 12946 |
24 |
| NEC Corporation | 36186 |
20 |
| Interdigital Patent Holdings, Inc. | 5835 |
19 |
| Beijing Xiaomi Mobile Software Co., Ltd. | 12968 |
18 |
| Xmatrix LLC | 66 |
17 |
| ZTE Corporation | 42891 |
15 |
| BlackBerry Limited | 5337 |
14 |
| Lenovo (Singapore) Pte. Ltd. | 3186 |
13 |
| Google LLC | 42891 |
13 |
| Canon Inc. | 40790 |
10 |
| Intel Corporation | 46760 |
10 |
| T-Mobile USA, Inc. | 4209 |
10 |
| Telefonaktiebolaget LM Ericsson (publ) | 28413 |
10 |
| Other owners | 449 |