- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 51/42 - Mailbox-related aspects, e.g. synchronisation of mailboxes
Patent holdings for IPC class H04L 51/42
Total number of patents in this class: 899
10-year publication summary
|
5
|
8
|
10
|
37
|
57
|
166
|
202
|
183
|
147
|
79
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| People.ai, Inc. | 141 |
53 |
| Microsoft Technology Licensing, LLC | 53891 |
49 |
| Snap Inc. | 5954 |
46 |
| Apple Inc. | 55387 |
34 |
| Yahoo Assets LLC | 1200 |
34 |
| salesforce.com, inc. | 5649 |
32 |
| Capital One Services, LLC. | 9253 |
25 |
| Darktrace Holdings Limited | 165 |
23 |
| Proofpoint, Inc. | 402 |
19 |
| Google LLC | 42540 |
15 |
| Beijing Bytedance Network Technology Co., Ltd. | 4088 |
13 |
| META Platforms, Inc. | 7086 |
13 |
| Omnissa, LLC | 1618 |
13 |
| International Business Machines Corporation | 61433 |
12 |
| Huawei Technologies Co., Ltd. | 113689 |
10 |
| Whitehead Investments, LLC | 12 |
10 |
| Citrix Systems, Inc. | 3599 |
9 |
| Dropbox, Inc. | 1531 |
9 |
| KnowBe4, Inc. | 237 |
9 |
| Atlassian Pty Ltd | 685 |
8 |
| Other owners | 463 |