- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 9/16 - Arrangements for secret or secure communicationsNetwork security protocols using a plurality of keys or algorithms the keys or algorithms being changed during operation
Patent holdings for IPC class H04L 9/16
Total number of patents in this class: 654
10-year publication summary
|
62
|
80
|
84
|
65
|
42
|
42
|
41
|
52
|
22
|
30
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amazon Technologies, Inc. | 28193 |
21 |
| Nippon Telegraph and Telephone Corporation | 15939 |
18 |
| Mitsubishi Electric Corporation | 48172 |
17 |
| NEC Corporation | 37168 |
16 |
| Fujitsu Limited | 16854 |
13 |
| Huawei Technologies Co., Ltd. | 124115 |
13 |
| Capital One Services, LLC. | 10058 |
11 |
| Cryptography Research, Inc. | 323 |
9 |
| Nagravision SARL | 374 |
9 |
| Samsung Electronics Co., Ltd. | 158442 |
8 |
| Apple Inc. | 59027 |
8 |
| International Business Machines Corporation | 62748 |
8 |
| Panasonic Intellectual Property Management Co., Ltd. | 34265 |
8 |
| Sony Semiconductor Solutions Corporation | 11717 |
8 |
| Cisco Technology, Inc. | 22555 |
7 |
| Microsoft Technology Licensing, LLC | 54510 |
7 |
| Panasonic Corporation | 18849 |
6 |
| mSignia, Inc. | 8 |
6 |
| Stealthpath IP Inc. | 17 |
6 |
| Experian Information Solutions, Inc. | 193 |
5 |
| Other owners | 450 |