- 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: 833
10-year publication summary
|
11
|
8
|
10
|
28
|
52
|
99
|
164
|
202
|
215
|
66
|
| 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 | 53512 |
29 |
| salesforce.com, inc. | 5509 |
25 |
| Darktrace Holdings Limited | 151 |
23 |
| Apple Inc. | 54479 |
22 |
| Proofpoint, Inc. | 364 |
22 |
| KnowBe4, Inc. | 236 |
15 |
| Yahoo Assets LLC | 1180 |
15 |
| Capital One Services, LLC. | 9035 |
14 |
| International Business Machines Corporation | 61023 |
13 |
| Snap Inc. | 5707 |
12 |
| Bank of America Corporation | 7443 |
11 |
| Cisco Technology, Inc. | 19623 |
11 |
| BlackBerry Limited | 5169 |
10 |
| Adeia Guides Inc. | 3174 |
10 |
| Research In Motion Limited | 1970 |
9 |
| Google LLC | 41828 |
9 |
| Sophos Limited | 620 |
9 |
| META Platforms Technologies, LLC | 5689 |
9 |
| Bitdefender IPR Management Ltd. | 353 |
7 |
| Other owners | 515 |