- 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: 1090
10-year publication summary
|
9
|
18
|
60
|
94
|
128
|
190
|
168
|
163
|
140
|
101
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 123385 |
82 |
| Qualcomm Incorporated | 92196 |
79 |
| Ericsson | 22717 |
66 |
| Samsung Electronics Co., Ltd. | 157719 |
50 |
| Apple Inc. | 58742 |
35 |
| Nokia Technologies Oy | 21106 |
31 |
| Cisco Technology, Inc. | 22493 |
30 |
| Beijing Xiaomi Mobile Software Co., Ltd. | 14974 |
27 |
| Interdigital Patent Holdings, Inc. | 6934 |
26 |
| Brother Industries, Ltd. | 12831 |
25 |
| NEC Corporation | 37004 |
18 |
| ZTE Corporation | 44170 |
18 |
| Xmatrix LLC | 66 |
17 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 23285 |
16 |
| Google LLC | 44482 |
15 |
| BlackBerry Limited | 4898 |
14 |
| Lenovo (Singapore) Pte. Ltd. | 3354 |
14 |
| Canon Inc. | 43817 |
12 |
| T-Mobile USA, Inc. | 4497 |
11 |
| Telefonaktiebolaget LM Ericsson (publ) | 28758 |
11 |
| Other owners | 493 |