H04L 9/08
Key distribution or management
Official title: Key distribution {or management, e.g. generation, sharing or updating, of cryptographic keys or passwords (network architectures or network communication protocols for supporting key management in a packet data network H04L63/06)}
H04L9/08 (Key distribution or management) appears on 30,580 US grants and 36,043 published applications in this corpus.
Search patents in H04L- Granted patents
- 30,580
- Published applications
- 36,043
- Assignees
- 6,710
- Inventors
- 45,861
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 6 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 8 | 0 |
| 1989 | 17 | 0 |
| 1990 | 24 | 0 |
| 1991 | 24 | 0 |
| 1992 | 30 | 0 |
| 1993 | 43 | 0 |
| 1994 | 43 | 0 |
| 1995 | 41 | 0 |
| 1996 | 55 | 0 |
| 1997 | 63 | 0 |
| 1998 | 99 | 0 |
| 1999 | 85 | 0 |
| 2000 | 107 | 0 |
| 2001 | 101 | 58 |
| 2002 | 76 | 252 |
| 2003 | 68 | 323 |
| 2004 | 110 | 314 |
| 2005 | 152 | 532 |
| 2006 | 244 | 607 |
| 2007 | 279 | 739 |
| 2008 | 298 | 735 |
| 2009 | 366 | 781 |
| 2010 | 491 | 764 |
| 2011 | 560 | 719 |
| 2012 | 712 | 816 |
| 2013 | 879 | 915 |
| 2014 | 1155 | 1068 |
| 2015 | 1153 | 1167 |
| 2016 | 1158 | 1362 |
| 2017 | 1291 | 1643 |
| 2018 | 1313 | 1964 |
| 2019 | 1806 | 2528 |
| 2020 | 2268 | 3096 |
| 2021 | 2618 | 3180 |
| 2022 | 2988 | 2976 |
| 2023 | 2760 | 2782 |
| 2024 | 2747 | 2667 |
| 2025 | 2663 | 2148 |
| 2026 | 1654 | 1907 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04L 9/0816Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret17,785
- H04L 9/0861Generation of secret information including derivation or calculation of cryptographic keys or11,491
- H04L 9/0894Escrow, recovery or storing of secret information8,027
- H04L 9/0891Revocation or update of secret information4,482
- H04L 9/088Usage controlling of secret information2,600
Recent patents
- Systems and methods for region-specific sub-tokenization in cryptographic transaction processing6 Oct 2026US 12,754,690 B2Vannadium, Inc.
- Secure virtualized cryptographic subsystems for autonomous systems and applications6 Oct 2026US 12,754,756 B2NVIDIA Corporation
- Key server and storage deadlock control6 Oct 2026US 12,754,780 B2International Business Machines Corporation
- Obfuscating cryptographic material in memory6 Oct 2026US 12,754,854 B2Capital One Services, LLC
- Digital identity sign-in6 Oct 2026US 12,754,983 B2Early Warning Services, LLC
- Data transfer between two data processing units8 Oct 2026US 2026/0310804 A1Siemens Aktiengesellschaft
- Transferring digital wallets8 Oct 2026US 2026/0311164 A1American Express Travel Related Services Company, Inc.
- Ciphertext header-based data security8 Oct 2026US 2026/0312789 A1T-Mobile Innovations LLC
- Attribute-based probabilistic filter configuration for key-value lookup handling8 Oct 2026US 2026/0312790 A1VMware, Inc.
- Data migration using an orchestrator generated data migration transcript with trustee as a service8 Oct 2026US 2026/0312791 A1Dell Products L. P.
Most cited
By later US patents
- System for generation of user profiles for a system for customized electronic identification of desirable objects2,365US 5,754,939 A1998
- Electronic content delivery system1,734US 6,226,618 B1International Business Machines Corporation · 2001
- System and method for scheduling broadcast of and access to video programs and other data using customer profiles1,609US 5,758,257 A1998
- Method and apparatus for the secure distributed storage and retrieval of information1,561US 5,991,414 AInternational Business Machines Corporation · 1999
- Method and apparatus for the secure distributed storage and retrieval of information1,551US 6,192,472 B1International Business Machines Corporation · 2001