- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 51/56 - Unified messaging, e.g. interactions between e-mail, instant messaging or converged IP messaging [CPM]
Patent holdings for IPC class H04L 51/56
Total number of patents in this class: 439
10-year publication summary
|
4
|
4
|
12
|
30
|
55
|
95
|
110
|
76
|
58
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| salesforce.com, inc. | 5757 |
34 |
| Microsoft Technology Licensing, LLC | 54394 |
19 |
| Apple Inc. | 56633 |
13 |
| Google LLC | 43237 |
12 |
| Snap Inc. | 6270 |
11 |
| Twilio, Inc. | 611 |
11 |
| Proofpoint, Inc. | 410 |
9 |
| 8x8, Inc. | 449 |
8 |
| Rembrandt Messaging Technologies, LP | 18 |
8 |
| Unanimous A.I., Inc. | 45 |
8 |
| Tigerconnect, Inc. | 53 |
8 |
| International Business Machines Corporation | 61840 |
7 |
| Dropbox, Inc. | 1563 |
6 |
| Entefy Inc. | 70 |
6 |
| Wrinkl, Inc. | 16 |
6 |
| Community.com, Inc. | 20 |
6 |
| Zoom Communications, Inc. | 905 |
6 |
| Samsung Electronics Co., Ltd. | 149838 |
5 |
| Verizon Patent And Licensing Inc. | 7380 |
5 |
| PayPal, Inc. | 4204 |
5 |
| Other owners | 246 |