- 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: 798
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 | 10864 |
20 |
| McAfee, Inc. | 263 |
18 |
| International Business Machines Corporation | 62182 |
17 |
| Hewlett-Packard Development Company, L.P. | 25370 |
17 |
| Microsoft Corporation | 9472 |
15 |
| BlackBerry Limited | 5003 |
14 |
| Sumitomo Electric Industries, Ltd. | 16071 |
12 |
| Sumitomo Wiring Systems, Ltd. | 10767 |
12 |
| AutoNetworks Technologies, Ltd. | 6922 |
12 |
| Alarm.com Incorporated | 1010 |
11 |
| Qualcomm Incorporated | 90109 |
10 |
| Samsung Electronics Co., Ltd. | 153573 |
8 |
| Royal Bank of Canada | 2054 |
8 |
| Comcast Cable Communications, LLC | 5028 |
8 |
| Siemens AG | 24236 |
7 |
| Intel Corporation | 46638 |
7 |
| Huawei Technologies Co., Ltd. | 119891 |
7 |
| Ahnlab, Inc. | 127 |
7 |
| IBM United Kingdom Limited | 4102 |
7 |
| Sonos, Inc. | 2787 |
7 |
| Other owners | 574 |