- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 9/16 - Arrangements for secret or secure communications; Network 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: 598
10-year publication summary
|
45
|
42
|
62
|
80
|
85
|
65
|
41
|
38
|
39
|
18
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amazon Technologies, Inc. | 24422 |
18 |
| Nippon Telegraph and Telephone Corporation | 14195 |
17 |
| Fujitsu Limited | 19265 |
15 |
| Mitsubishi Electric Corporation | 43934 |
15 |
| Huawei Technologies Co., Ltd. | 100781 |
15 |
| NEC Corporation | 32703 |
13 |
| International Business Machines Corporation | 60644 |
10 |
| Cryptography Research, Inc. | 282 |
9 |
| Capital One Services, LLC. | 7551 |
9 |
| Samsung Electronics Co., Ltd. | 131630 |
7 |
| Cisco Technology, Inc. | 18858 |
7 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
7 |
| Panasonic Corporation | 20786 |
6 |
| Microsoft Technology Licensing, LLC | 51439 |
6 |
| mSignia, Inc. | 8 |
6 |
| Nagravision S.A. | 626 |
6 |
| Sony Semiconductor Solutions Corporation | 8770 |
6 |
| Apple Inc. | 50209 |
5 |
| KDDI Corporation | 764 |
5 |
| NTI, Inc. | 41 |
5 |
| Other owners | 411 |