- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 12/22 - Arrangements for preventing the taking of data from a data transmission channel without authorisation
Patent holdings for IPC class H04L 12/22
Total number of patents in this class: 768
10-year publication summary
|
45
|
35
|
38
|
27
|
34
|
23
|
23
|
27
|
8
|
18
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hewlett Packard Enterprise Development LP | 12492 |
21 |
| McAfee, Inc. | 263 |
18 |
| Hewlett-Packard Development Company, L.P. | 25103 |
17 |
| International Business Machines Corporation | 62871 |
16 |
| BlackBerry Limited | 4807 |
14 |
| Sumitomo Electric Industries, Ltd. | 16419 |
14 |
| Sumitomo Wiring Systems, Ltd. | 11259 |
14 |
| AutoNetworks Technologies, Ltd. | 7319 |
14 |
| Alarm.com Incorporated | 1009 |
11 |
| Microsoft Corporation | 8986 |
10 |
| Royal Bank of Canada | 2088 |
8 |
| Comcast Cable Communications, LLC | 5273 |
8 |
| Samsung Electronics Co., Ltd. | 159755 |
7 |
| Qualcomm Incorporated | 93957 |
7 |
| Ahnlab, Inc. | 129 |
7 |
| IBM United Kingdom Limited | 4036 |
7 |
| Sonos, Inc. | 2905 |
7 |
| Mastercard Technologies Canada ULC | 261 |
7 |
| The Boeing Company | 20232 |
6 |
| Panasonic Corporation | 18572 |
6 |
| Other owners | 549 |