H04L 2209/00
Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for
Official title: Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
H04L2209/00 (Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for) appears on 26,976 US grants and 32,747 published applications in this corpus.
Search patents in H04L- Granted patents
- 26,976
- Published applications
- 32,747
- Assignees
- 6,675
- Inventors
- 41,125
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 14 | 0 |
| 1980 | 16 | 0 |
| 1981 | 13 | 0 |
| 1982 | 14 | 0 |
| 1983 | 8 | 0 |
| 1984 | 8 | 0 |
| 1985 | 11 | 0 |
| 1986 | 8 | 0 |
| 1987 | 10 | 0 |
| 1988 | 15 | 0 |
| 1989 | 25 | 0 |
| 1990 | 34 | 0 |
| 1991 | 33 | 0 |
| 1992 | 43 | 0 |
| 1993 | 69 | 0 |
| 1994 | 64 | 0 |
| 1995 | 56 | 0 |
| 1996 | 66 | 0 |
| 1997 | 103 | 0 |
| 1998 | 134 | 0 |
| 1999 | 126 | 0 |
| 2000 | 163 | 0 |
| 2001 | 148 | 98 |
| 2002 | 97 | 467 |
| 2003 | 113 | 492 |
| 2004 | 151 | 516 |
| 2005 | 222 | 836 |
| 2006 | 382 | 930 |
| 2007 | 440 | 1103 |
| 2008 | 455 | 1216 |
| 2009 | 540 | 1167 |
| 2010 | 799 | 1178 |
| 2011 | 822 | 1029 |
| 2012 | 1057 | 936 |
| 2013 | 1242 | 1003 |
| 2014 | 1299 | 955 |
| 2015 | 1098 | 1145 |
| 2016 | 1085 | 1197 |
| 2017 | 1089 | 1406 |
| 2018 | 1054 | 1516 |
| 2019 | 1392 | 2099 |
| 2020 | 1694 | 2678 |
| 2021 | 1954 | 2478 |
| 2022 | 2176 | 2149 |
| 2023 | 1973 | 2152 |
| 2024 | 2012 | 1778 |
| 2025 | 1744 | 1295 |
| 2026 | 898 | 928 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04L 2209/80WirelessIndexing code8,035
- H04L 2209/56Financial cryptographyIndexing code6,906
- H04L 2209/60Digital content managementIndexing code4,408
- H04L 2209/12Details relating to cryptographic hardware or logic circuitryIndexing code3,152
- H04L 2209/84VehiclesIndexing code1,905
- H04L 2209/24Key scheduling, i.e. generating round keys or sub-keys for block encryptionIndexing code1,616
- H04L 2209/34Encoding or codingIndexing code1,208
- H04L 2209/42AnonymizationIndexing code1,115
All 21 subgroupsShow fewer
- H04L 2209/04Masking or blindingIndexing code1,048
- H04L 2209/46Secure multiparty computationIndexing code998
- H04L 2209/08RandomizationIndexing code992
- H04L 2209/16Obfuscation or hidingIndexing code837
- H04L 2209/76Proxy, i.e. using intermediary entity to perform cryptographic operationsIndexing code795
- H04L 2209/88Medical equipmentsIndexing code598
- H04L 2209/30CompressionIndexing code587
- H04L 2209/20Manipulating the length of blocks of bitsIndexing code371
- H04L 2209/26Testing cryptographic entityIndexing code301
- H04L 2209/72Signcrypting, i.e. digital signing and encrypting simultaneouslyIndexing code264
- H04L 2209/64Self-signed certificatesIndexing code199
- H04L 2209/68Special signature formatIndexing code188
- H04L 2209/50Oblivious transferIndexing code138
Recent patents
- Cloud-based keyless entry system6 Oct 2026US 12,752,736 B2Red Hat, Inc.
- Obfuscating cryptographic material in memory6 Oct 2026US 12,754,854 B2Capital One Services, LLC
- Blockchain-based anonymous trusted voting method, apparatus and related device6 Oct 2026US 12,755,028 B2Guizhou Power Grid Company Limited
- Method, apparatus, medium and device for generating data tuple for secure computation6 Oct 2026US 12,755,043 B2Beijing Zitiao Network Technology Co., Ltd.
- Methods for protecting privacy6 Oct 2026US 12,756,543 B2Google Inc.
- Aggregation and reporting of surgical hub data8 Oct 2026US 2026/0306129 A1
- Systems and methods for multi-entity blockchain-based event break prevention8 Oct 2026US 2026/0311172 A1Citibank, N. A.
- Computer system for providing payments, incentives, and fraud protection within or across industries8 Oct 2026US 2026/0311209 A1Pay With Spire, Inc.
- Health data exchange platform8 Oct 2026US 2026/0311858 A1Youngblood IP Holdings, LLC
- Portable memory device configured for host device to manage access to digital assets8 Oct 2026US 2026/0312798 A1Solana Mobile Inc.
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
- Scheme for information dispersal and reconstruction1,530US 5,485,474 APresident and Fellows of Harvard College · 1996
- System for controlling the distribution and use of digital works1,495US 5,629,980 AXerox Corporation · 1997