- 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: 853
10-year publication summary
|
11
|
8
|
10
|
28
|
52
|
99
|
165
|
204
|
215
|
84
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| People.ai, Inc. | 140 |
43 |
| Microsoft Technology Licensing, LLC | 53720 |
29 |
| salesforce.com, inc. | 5608 |
25 |
| Darktrace Holdings Limited | 156 |
23 |
| Apple Inc. | 54844 |
22 |
| Proofpoint, Inc. | 396 |
22 |
| Yahoo Assets LLC | 1193 |
16 |
| KnowBe4, Inc. | 236 |
15 |
| Capital One Services, LLC. | 9149 |
14 |
| International Business Machines Corporation | 61228 |
13 |
| Cisco Technology, Inc. | 19918 |
12 |
| Snap Inc. | 5849 |
12 |
| Bank of America Corporation | 7552 |
11 |
| Adeia Guides Inc. | 3258 |
11 |
| BlackBerry Limited | 5132 |
10 |
| Sophos Limited | 628 |
10 |
| Research In Motion Limited | 1962 |
9 |
| Google LLC | 42196 |
9 |
| META Platforms Technologies, LLC | 5792 |
9 |
| LINE Plus Corporation | 241 |
8 |
| Other owners | 530 |