- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 51/212 - Monitoring or handling of messages using filtering or selective blocking
Patent holdings for IPC class H04L 51/212
Total number of patents in this class: 901
10-year publication summary
|
2
|
5
|
6
|
25
|
43
|
96
|
168
|
208
|
211
|
128
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| People.ai, Inc. | 141 |
44 |
| Microsoft Technology Licensing, LLC | 54162 |
32 |
| Apple Inc. | 56070 |
26 |
| salesforce.com, inc. | 5707 |
25 |
| Darktrace Holdings Limited | 169 |
23 |
| Proofpoint, Inc. | 409 |
22 |
| Yahoo Assets LLC | 1191 |
16 |
| KnowBe4, Inc. | 237 |
15 |
| International Business Machines Corporation | 61694 |
14 |
| Capital One Services, LLC. | 9426 |
14 |
| Bank of America Corporation | 7781 |
13 |
| Cisco Technology, Inc. | 22099 |
13 |
| Snap Inc. | 6110 |
12 |
| Sophos Limited | 646 |
12 |
| Adeia Guides Inc. | 3465 |
12 |
| Google LLC | 42942 |
11 |
| BlackBerry Limited | 5282 |
10 |
| META Platforms Technologies, LLC | 6004 |
9 |
| LINE Plus Corporation | 247 |
8 |
| Research In Motion Limited | 1724 |
7 |
| Other owners | 563 |