- 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: 816
10-year publication summary
|
35
|
23
|
21
|
12
|
17
|
20
|
19
|
25
|
8
|
3
|
| 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 | 10817 |
21 |
| McAfee, Inc. | 263 |
18 |
| International Business Machines Corporation | 62076 |
17 |
| Hewlett-Packard Development Company, L.P. | 25419 |
17 |
| Microsoft Corporation | 9564 |
15 |
| BlackBerry Limited | 5104 |
14 |
| Sumitomo Electric Industries, Ltd. | 16017 |
12 |
| Sumitomo Wiring Systems, Ltd. | 10724 |
12 |
| AutoNetworks Technologies, Ltd. | 6891 |
12 |
| Qualcomm Incorporated | 89428 |
11 |
| Alarm.com Incorporated | 1008 |
11 |
| Samsung Electronics Co., Ltd. | 152534 |
8 |
| Royal Bank of Canada | 2054 |
8 |
| Intel Corporation | 46625 |
8 |
| Huawei Technologies Co., Ltd. | 119081 |
8 |
| Comcast Cable Communications, LLC | 5017 |
8 |
| Siemens AG | 24314 |
7 |
| Ahnlab, Inc. | 126 |
7 |
| IBM United Kingdom Limited | 4119 |
7 |
| Sonos, Inc. | 2767 |
7 |
| Other owners | 588 |