G06F 21/64
Protecting data integrity
Official title: Protecting data integrity, e.g. using checksums, certificates or signatures
G06F21/64 (Protecting data integrity) appears on 8,078 US grants and 10,356 published applications in this corpus.
Search patents in G06F- Granted patents
- 8,078
- Published applications
- 10,356
- Assignees
- 2,783
- Inventors
- 16,997
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 11 | 0 |
| 1999 | 13 | 0 |
| 2000 | 25 | 0 |
| 2001 | 14 | 20 |
| 2002 | 18 | 69 |
| 2003 | 27 | 77 |
| 2004 | 28 | 130 |
| 2005 | 39 | 127 |
| 2006 | 56 | 117 |
| 2007 | 59 | 124 |
| 2008 | 59 | 153 |
| 2009 | 84 | 128 |
| 2010 | 109 | 129 |
| 2011 | 108 | 138 |
| 2012 | 122 | 124 |
| 2013 | 144 | 167 |
| 2014 | 211 | 228 |
| 2015 | 205 | 238 |
| 2016 | 225 | 282 |
| 2017 | 246 | 333 |
| 2018 | 261 | 370 |
| 2019 | 372 | 734 |
| 2020 | 558 | 1107 |
| 2021 | 839 | 1194 |
| 2022 | 978 | 1151 |
| 2023 | 870 | 1012 |
| 2024 | 969 | 948 |
| 2025 | 904 | 751 |
| 2026 | 496 | 505 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for securing against fault attacks a verification algorithm of a digital signature of a message6 Oct 2026US 12,755,006 B2Thales Dis France SAS
- Permit-gated child-AI companion safety rails6 Oct 2026US 12,755,034 B1The Crown and the Cross LLC
- Detection device, detection method, and detection program6 Oct 2026US 12,755,056 B2NTT, Inc.
- Secure digital data collection6 Oct 2026US 12,755,057 B2Imagekeeper LLC
- System and method for forming, storing, managing, and executing contracts6 Oct 2026US 12,755,244 B2DocuSign, Inc.
- System and method for an electronic signature device8 Oct 2026US 2026/0310310 A1
- Blockchain-enhanced data asset management and distributed computation platform8 Oct 2026US 2026/0310517 A1
- Leader alignment system and method for mission fit and multi-stakeholder decision optimization8 Oct 2026US 2026/0310828 A1
- Method of Data Encryption with Recursive Semantic Fragmentation and MasterSeed Sealing8 Oct 2026US 2026/0312821 A1
- Firmware Wireless Update System and Method Thereof1 Oct 2026US 2026/0299921 A1Hyundai Motor Company
Most cited
By later US patents
- Method of authenticating game data sets in an electronic casino gaming system747US 6,149,522 ASilicon Gaming - Nevada · 2000
- Electronic casino gaming apparatus with improved play capacity, authentication and security744US 5,643,086 ASilicon Gaming, Inc. · 1997
- Electronic casino gaming system with improved play capacity, authentication and security546US 6,106,396 ASilicon Gaming, Inc. · 2000
- Apparatus and method for authenticated multi-user personal information database540US 6,985,887 B1Suncrest LLC · 2006
- Distributed security auditing subsystem for an operating system451US 5,032,979 AInternational Business Machines Corporation · 1991