H04L 9/40
Network security protocols
H04L9/40 (Network security protocols) appears on 4,249 US grants and 3,055 published applications in this corpus.
Search patents in H04L- Granted patents
- 4,249
- Published applications
- 3,055
- Assignees
- 1,462
- Inventors
- 9,935
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 9 | 0 |
| 1986 | 6 | 0 |
| 1987 | 11 | 0 |
| 1988 | 13 | 0 |
| 1989 | 17 | 0 |
| 1990 | 29 | 0 |
| 1991 | 34 | 0 |
| 1992 | 38 | 0 |
| 1993 | 65 | 0 |
| 1994 | 64 | 0 |
| 1995 | 107 | 0 |
| 1996 | 172 | 0 |
| 1997 | 148 | 0 |
| 1998 | 239 | 0 |
| 1999 | 227 | 0 |
| 2000 | 197 | 0 |
| 2001 | 194 | 59 |
| 2002 | 217 | 348 |
| 2003 | 172 | 288 |
| 2004 | 164 | 208 |
| 2005 | 146 | 169 |
| 2006 | 165 | 108 |
| 2007 | 149 | 72 |
| 2008 | 135 | 70 |
| 2009 | 109 | 57 |
| 2010 | 88 | 41 |
| 2011 | 71 | 40 |
| 2012 | 71 | 63 |
| 2013 | 67 | 71 |
| 2014 | 90 | 70 |
| 2015 | 73 | 41 |
| 2016 | 62 | 30 |
| 2017 | 57 | 67 |
| 2018 | 36 | 58 |
| 2019 | 63 | 68 |
| 2020 | 68 | 94 |
| 2021 | 76 | 48 |
| 2022 | 72 | 96 |
| 2023 | 94 | 180 |
| 2024 | 103 | 232 |
| 2025 | 203 | 283 |
| 2026 | 119 | 194 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Enhanced blockchain data computing platform for strategic master data management1 Sep 2026US 12,724,927 B2Truist Bank
- Apparatus and method for supporting heterogeneous communication in wireless power transmission system1 Sep 2026US 12,726,233 B2LG Electronics Inc.
- Secure channel establishment25 Aug 2026US 12,719,663 B2Mastercard International Incorporated
- Secure computation apparatus, secure computation method, and program25 Aug 2026US 12,719,665 B2NTT, Inc.
- Identity authentication method, electronic device and computer-readable storage medium25 Aug 2026US 12,719,686 B2Zte Corporation
- Centralized authorization for secure shell access8 Oct 2026US 2026/0312792 A1CyberArk Software Ltd.
- Centralized authorization for secure shell access8 Oct 2026US 2026/0312832 A1CyberArk Software Ltd.
- Dynamic Event and User Validation Using Reflectance Transformation Imaging8 Oct 2026US 2026/0312940 A1Bank of America Corporation
- Cross-node data transmission method and related apparatus1 Oct 2026US 2026/0303377 A1
- Security for AI/ML Model Storage and Sharing24 Sep 2026US 2026/0291738 A1
Most cited
By later US patents
- System for allowing all remote computers to perform annotation on an image and replicating the annotated image on the respective displays of other comuters2,385US 5,608,872 ANCR Corporation · 1997
- Internet service of differently formatted viewable data signals including commands for browser execution2,255US 6,295,530 B12001
- Remote collaboration system including first program means translating user inputs into annotations and running on all computers while second program means runs on one computer2,250US 5,761,419 ANCR Corporation · 1998
- Method and apparatus for serving files to browsing clients2,153US 6,826,565 B2Ablaise Limited · 2004
- System for synchronizing a plurality of nodes to concurrently generate output signals by adjusting relative timelags based on a maximum estimated timelag1,773US 5,923,902 AYamaha Corporation · 1999