H04L 9/3268
Using certificate validation, registration, distribution or revocation
Official title: {using certificate validation, registration, distribution or revocation, e.g. certificate revocation list [CRL]}
H04L9/3268 (Using certificate validation, registration, distribution or revocation) appears on 3,073 US grants and 3,633 published applications in this corpus.
Search patents in H04L- Granted patents
- 3,073
- Published applications
- 3,633
- Assignees
- 1,079
- Inventors
- 6,201
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 14 | 0 |
| 2001 | 10 | 6 |
| 2002 | 4 | 37 |
| 2003 | 2 | 20 |
| 2004 | 6 | 22 |
| 2005 | 16 | 56 |
| 2006 | 27 | 44 |
| 2007 | 16 | 52 |
| 2008 | 23 | 56 |
| 2009 | 21 | 34 |
| 2010 | 42 | 56 |
| 2011 | 40 | 43 |
| 2012 | 45 | 41 |
| 2013 | 61 | 82 |
| 2014 | 85 | 101 |
| 2015 | 101 | 111 |
| 2016 | 102 | 137 |
| 2017 | 146 | 214 |
| 2018 | 158 | 226 |
| 2019 | 208 | 299 |
| 2020 | 270 | 307 |
| 2021 | 275 | 319 |
| 2022 | 308 | 307 |
| 2023 | 307 | 301 |
| 2024 | 309 | 316 |
| 2025 | 288 | 253 |
| 2026 | 174 | 193 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Provisioning a device to be an authentication device6 Oct 2026US 12,756,702 B1Amazon Technologies, Inc.
- Systems and methods for extending cryptographic certificates with target-binding information29 Sep 2026US 12,750,210 B2Assa Abloy AB
- Apparatus and method for performing authentication for vehicle on-demand service29 Sep 2026US 12,750,244 B242Dot Inc.
- Public key infrastructure system for validating digitally signed data structures across communication channels29 Sep 2026US 12,750,245 B1CTIA—The Wireless Association
- Securely sharing data and access permissions in a cloud environment22 Sep 2026US 12,744,661 B2Micron Technology, Inc.
- Digital certificate-based authentication of configuration changes in industrial devices8 Oct 2026US 2026/0312826 A1Schneider Electric Systems USA, Inc.
- Attribute Certificate Having Additional Cryptographic Information Relating to a Digital Certificate8 Oct 2026US 2026/0312827 A1Siemens Aktiengesellschaft
- Methods and Systems for Processing Data8 Oct 2026US 2026/0312828 A1Siemens Aktiengesellschaft
- Method for operating an autonomous certificate management system for technical devices placed in a vehicle and system for vehicles, particularly for an aircraft8 Oct 2026US 2026/0312829 A1
- Method and apparatus for verifying firmware8 Oct 2026US 2026/0312830 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Client/server protocol for proving authenticity655US 6,085,320 ARSA Security Inc. · 2000
- Client/server protocol for proving authenticity490US 6,189,098 B1RSA Security Inc. · 2001
- Reliance server for electronic transaction system475US 5,903,882 ACertCo LLC · 1999
- Method and apparatus for privacy and authentication in wireless networks463US 5,371,794 ASun Microsystems, Inc. · 1994
- Method and apparatus for obtaining status of public key certificate updates356US 6,442,688 B1Entrust Technologies Limited · 2002