H04L 9/007
Involving hierarchical structures
Official title: {involving hierarchical structures}
H04L9/007 (Involving hierarchical structures) appears on 115 US grants and 141 published applications in this corpus.
Search patents in H04L- Granted patents
- 115
- Published applications
- 141
- Assignees
- 101
- Inventors
- 306
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 7 |
| 2003 | 0 | 3 |
| 2004 | 1 | 1 |
| 2005 | 0 | 3 |
| 2006 | 5 | 5 |
| 2007 | 2 | 1 |
| 2008 | 3 | 7 |
| 2009 | 4 | 1 |
| 2010 | 3 | 7 |
| 2011 | 1 | 3 |
| 2012 | 4 | 6 |
| 2013 | 5 | 4 |
| 2014 | 9 | 8 |
| 2015 | 6 | 3 |
| 2016 | 6 | 6 |
| 2017 | 3 | 10 |
| 2018 | 7 | 6 |
| 2019 | 5 | 5 |
| 2020 | 6 | 8 |
| 2021 | 12 | 14 |
| 2022 | 5 | 7 |
| 2023 | 12 | 5 |
| 2024 | 4 | 5 |
| 2025 | 5 | 11 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for securing access rights to resources using cryptography and the blockchain29 Sep 2026US 12,750,203 B2Live Nation Entertainment, Inc.
- Method for encrypting data streams4 Aug 2026US 12,700,988 B2
- Computer-based systems configured to select a monitored data segmentation and methods of use thereof14 Jul 2026US 12,683,763 B2Capital One Services, LLC
- Transitioning to and from crypto-agile hybrid public key infrastructures2 Jun 2026US 12,647,285 B2ISARA Corporation
- Data security for networks combining encryption with error correction5 May 2026US 12,621,174 B2Cisco Technology, Inc.
- Secure key utilization in a distributed hardware security module19 Mar 2026US 2026/0081760 A1Microsoft Technology Licensing, LLC
- Method for encrypting data streams5 Mar 2026US 2026/0067060 A1
- Cryptographic attestation of data object attributes in a distributed system19 Feb 2026US 2026/0052028 A1Fortanix, Inc.
- Wrapped encryption5 Feb 2026US 2026/0039452 A1nChain Licensing AG
- Public key infrastructure using quantum computers (pkiqc)8 Jan 2026US 2026/0012337 A1Wells Fargo Bank, N. A.
Most cited
By later US patents
- Security infrastructure for electronic transactions256US 5,745,574 AEntegrity Solutions Corporation · 1998
- Witness-based certificate revocation system149US 5,717,758 A1998
- System and method for graphical indicia for the certification of records135US 7,017,046 B2Proofspace, Inc. · 2006
- System and method for widely witnessed proof of time32US 7,047,415 B2DFS Linkages, Inc. · 2006
- System and method for graphical indicia for the certification of records28US 7,210,035 B2DFS Linkages, Inc. · 2007