- 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: 948
10-year publication summary
|
5
|
6
|
25
|
43
|
97
|
169
|
210
|
213
|
146
|
31
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| People.ai, Inc. | 142 |
44 |
| Microsoft Technology Licensing, LLC | 54210 |
33 |
| Apple Inc. | 57989 |
27 |
| salesforce.com, inc. | 5879 |
27 |
| Proofpoint, Inc. | 406 |
25 |
| Darktrace Holdings Limited | 171 |
24 |
| Yahoo Assets LLC | 1172 |
17 |
| Snap Inc. | 6544 |
16 |
| International Business Machines Corporation | 62148 |
15 |
| KnowBe4, Inc. | 237 |
15 |
| Bank of America Corporation | 8130 |
14 |
| Cisco Technology, Inc. | 22242 |
14 |
| Capital One Services, LLC. | 9666 |
14 |
| Sophos Limited | 686 |
13 |
| Adeia Guides Inc. | 3699 |
13 |
| Google LLC | 43671 |
11 |
| BlackBerry Limited | 5027 |
10 |
| META Platforms Technologies, LLC | 6282 |
10 |
| LINE Plus Corporation | 259 |
8 |
| Panasonic Well LLC | 81 |
8 |
| Other owners | 590 |