H04L 51/42
Mailbox-related aspects
Official title: Mailbox-related aspects, e.g. synchronisation of mailboxes
H04L51/42 (Mailbox-related aspects) appears on 3,144 US grants and 3,608 published applications in this corpus.
Search patents in H04L- Granted patents
- 3,144
- Published applications
- 3,608
- Assignees
- 892
- Inventors
- 5,770
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 10 | 0 |
| 2001 | 15 | 12 |
| 2002 | 9 | 27 |
| 2003 | 12 | 35 |
| 2004 | 12 | 38 |
| 2005 | 8 | 50 |
| 2006 | 16 | 52 |
| 2007 | 20 | 61 |
| 2008 | 29 | 61 |
| 2009 | 33 | 94 |
| 2010 | 49 | 62 |
| 2011 | 58 | 90 |
| 2012 | 82 | 125 |
| 2013 | 99 | 113 |
| 2014 | 120 | 153 |
| 2015 | 101 | 232 |
| 2016 | 198 | 282 |
| 2017 | 194 | 266 |
| 2018 | 194 | 243 |
| 2019 | 282 | 309 |
| 2020 | 315 | 269 |
| 2021 | 321 | 283 |
| 2022 | 274 | 234 |
| 2023 | 258 | 194 |
| 2024 | 224 | 154 |
| 2025 | 136 | 117 |
| 2026 | 51 | 52 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Dynamically controlling access to linked content in electronic communications29 Sep 2026US 12,748,870 B2Proofpoint, Inc.
- Sharing structured views of email messages between users29 Sep 2026US 12,750,333 B2Notion Labs, Inc.
- Gallery user interface with last posted message indication1 Sep 2026US 12,726,454 B1Snap Inc.
- Utilizing user-profile to prioritize processing of messages25 Aug 2026US 12,718,202 B2Cisco Technology, Inc.
- In-place e-mail procurement and archive system1 Oct 2026US 2026/0300926 A1ZL Technologies Inc.
- Time-Based Message Actions17 Sep 2026US 2026/0281074 A1Yahoo Assets LLC
- Display control device, display system, display method, and non-transitory computer-readable storage medium20 Aug 2026US 2026/0244311 A1Sharp Kabushiki Kaisha
- Computing Systems for Distributed Synchronization of Independent Data Structures13 Aug 2026US 2026/0236607 A1True South Partners, LLC
- Dynamically Providing Cybersecurity Training Based on User-Specific Threat Information6 Aug 2026US 2026/0228698 A1Proofpoint, Inc.
Most cited
By later US patents
- Electronic mail object synchronization between a desktop computer and mobile device1,364US 6,052,735 AMicrosoft Corporation · 2000
- Logical view with granular access to exchange data managed by a modular data and storage management system858US 7,003,641 B2Commvault Systems, Inc. · 2006
- System and method for archiving objects in an information store842US 7,107,298 B2Commvault Systems, Inc. · 2006
- Method and system for sorting and prioritizing electronic mail messages751US 5,377,354 ADigital Equipment Corporation · 1994
- Method, system, and apparatus for providing self-destructing electronic mail messages733US 7,356,564 B2AT&T Delaware Intellectual Property, Inc. · 2008