- 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: 891
10-year publication summary
75
|
79
|
45
|
35
|
39
|
26
|
33
|
22
|
22
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
International Business Machines Corporation | 60644 |
21 |
Hewlett Packard Enterprise Development LP | 10702 |
21 |
Microsoft Corporation | 10954 |
18 |
McAfee, Inc. | 273 |
18 |
Hewlett-Packard Development Company, L.P. | 28538 |
17 |
BlackBerry Limited | 5958 |
14 |
Qualcomm Incorporated | 76576 |
13 |
France Telecom | 1618 |
12 |
Research In Motion Limited | 2283 |
11 |
Alarm.com Incorporated | 931 |
11 |
Samsung Electronics Co., Ltd. | 131630 |
10 |
Intel Corporation | 45621 |
10 |
Huawei Technologies Co., Ltd. | 100781 |
9 |
IBM United Kingdom Limited | 4467 |
9 |
Telefonaktiebolaget LM Ericsson (publ) | 26435 |
9 |
Royal Bank of Canada | 1839 |
8 |
Nokia Corporation | 6965 |
8 |
Sumitomo Electric Industries, Ltd. | 14131 |
8 |
Sumitomo Wiring Systems, Ltd. | 9367 |
8 |
AutoNetworks Technologies, Ltd. | 5809 |
8 |
Other owners | 648 |