- 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: 1029
10-year publication summary
|
5
|
15
|
57
|
94
|
125
|
191
|
166
|
160
|
139
|
41
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 119724 |
79 |
| Qualcomm Incorporated | 90013 |
72 |
| Ericsson | 22261 |
65 |
| Samsung Electronics Co., Ltd. | 153357 |
43 |
| Apple Inc. | 58024 |
35 |
| Cisco Technology, Inc. | 22245 |
27 |
| Nokia Technologies Oy | 20211 |
27 |
| Brother Industries, Ltd. | 12876 |
25 |
| Interdigital Patent Holdings, Inc. | 6454 |
24 |
| Beijing Xiaomi Mobile Software Co., Ltd. | 14101 |
23 |
| NEC Corporation | 36595 |
18 |
| Xmatrix LLC | 66 |
17 |
| ZTE Corporation | 43559 |
16 |
| BlackBerry Limited | 5009 |
14 |
| Lenovo (Singapore) Pte. Ltd. | 3295 |
14 |
| Google LLC | 43702 |
14 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 22479 |
12 |
| T-Mobile USA, Inc. | 4374 |
11 |
| Canon Inc. | 42172 |
10 |
| Intel Corporation | 46633 |
10 |
| Other owners | 473 |