- All sections
- H - Electricity
- H04W - Wireless communication networks
- H04W 12/0431 - Key distribution or pre-distribution; Key agreement
Patent holdings for IPC class H04W 12/0431
Total number of patents in this class: 731
10-year publication summary
|
5
|
6
|
8
|
18
|
60
|
90
|
126
|
186
|
163
|
50
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ericsson | 20417 |
57 |
| Huawei Technologies Co., Ltd. | 100781 |
55 |
| Qualcomm Incorporated | 76576 |
46 |
| Samsung Electronics Co., Ltd. | 131630 |
33 |
| Apple Inc. | 50209 |
24 |
| Brother Industries, Ltd. | 13000 |
21 |
| NEC Corporation | 32703 |
19 |
| Nokia Technologies Oy | 15057 |
19 |
| Cisco Technology, Inc. | 18858 |
18 |
| Kip Prod P1 LP | 40 |
16 |
| BlackBerry Limited | 5958 |
14 |
| ZTE Corporation | 39218 |
11 |
| Lenovo (Singapore) Pte. Ltd. | 2853 |
10 |
| T-Mobile USA, Inc. | 3668 |
10 |
| Canon Inc. | 36841 |
9 |
| Interdigital Patent Holdings, Inc. | 3652 |
9 |
| Google LLC | 38759 |
9 |
| Intel Corporation | 45621 |
8 |
| Verizon Patent And Licensing Inc. | 6900 |
8 |
| Toyota Motor Corporation | 28582 |
7 |
| Other owners | 328 |