- 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: 957
10-year publication summary
|
0
|
5
|
15
|
57
|
94
|
125
|
191
|
166
|
159
|
101
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 113689 |
71 |
| Qualcomm Incorporated | 86346 |
69 |
| Ericsson | 21888 |
62 |
| Samsung Electronics Co., Ltd. | 147501 |
41 |
| Apple Inc. | 55387 |
32 |
| Nokia Technologies Oy | 18229 |
26 |
| Cisco Technology, Inc. | 21991 |
24 |
| Brother Industries, Ltd. | 12959 |
24 |
| NEC Corporation | 35935 |
20 |
| Beijing Xiaomi Mobile Software Co., Ltd. | 12600 |
17 |
| Xmatrix LLC | 66 |
17 |
| Interdigital Patent Holdings, Inc. | 5620 |
16 |
| ZTE Corporation | 42693 |
15 |
| BlackBerry Limited | 5352 |
14 |
| Lenovo (Singapore) Pte. Ltd. | 3123 |
13 |
| Google LLC | 42540 |
13 |
| Canon Inc. | 40352 |
10 |
| Intel Corporation | 47143 |
10 |
| T-Mobile USA, Inc. | 4167 |
10 |
| Telefonaktiebolaget LM Ericsson (publ) | 28219 |
9 |
| Other owners | 444 |