G06F 21/725
Operating on a secure reference time value
Official title: {operating on a secure reference time value}
G06F21/725 (Operating on a secure reference time value) appears on 239 US grants and 263 published applications in this corpus.
Search patents in G06F- Granted patents
- 239
- Published applications
- 263
- Assignees
- 145
- Inventors
- 515
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 5 |
| 2003 | 2 | 7 |
| 2004 | 3 | 7 |
| 2005 | 0 | 12 |
| 2006 | 4 | 12 |
| 2007 | 5 | 15 |
| 2008 | 6 | 24 |
| 2009 | 4 | 17 |
| 2010 | 8 | 7 |
| 2011 | 13 | 8 |
| 2012 | 17 | 8 |
| 2013 | 14 | 5 |
| 2014 | 13 | 13 |
| 2015 | 10 | 14 |
| 2016 | 10 | 11 |
| 2017 | 11 | 8 |
| 2018 | 13 | 13 |
| 2019 | 16 | 12 |
| 2020 | 10 | 17 |
| 2021 | 15 | 15 |
| 2022 | 14 | 7 |
| 2023 | 7 | 7 |
| 2024 | 9 | 10 |
| 2025 | 10 | 6 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Man-in-the-middle extender defense in data communications24 Mar 2026US 12,587,542 B2Itron, Inc.
- Synchronization of system time among smart devices via Security Protocol Data Model (SPDM)3 Feb 2026US 12,541,623 B2Dell Products L. P.
- Method for patching secure boot in IoT20 Jan 2026US 12,530,463 B2Beken Corporation
- System including a secure application configured to perform a clock update procedure4 Nov 2025US 12,461,554 B2NXP USA, Inc.
- Method and system for remote load of on-board certified software4 Nov 2025US 12,461,734 B2General Electric Company
- Man-In-The-Middle Extender Defense In Data Communications30 Jul 2026US 2026/0222417 A1Itron, Inc.
- Electronic device and operating method thereof5 Feb 2026US 2026/0038569 A1Samsung Electronics Co., Ltd.
- System identification based on determined clock information25 Dec 2025US 2025/0392585 A1
- Methods and systems for detection of clock tampering on an electronic device4 Sep 2025US 2025/0278223 A1Lexmark International, Inc.
- Methods and systems for detection of clock tampering on an electronic device4 Sep 2025US 2025/0278477 A1Lexmark International, Inc.
Most cited
By later US patents
- Systems and methods for secure transaction management and electronic rights protection3,563US 5,892,900 AIntertrust Technologies Corporation · 1999
- Method and apparatus for positively identifying an individual503US 4,720,860 ASecurity Dynamics Technologies, Inc. · 1988
- Method and apparatus for personal identification453US 5,168,520 ASecurity Dynamics Technologies, Inc. · 1992
- Timed availability of secured content provisioned on a storage medium432US 5,857,020 ANorthern Telecom Limited · 1999
- Time based availability to content of a storage medium346US 5,825,876 ANorthern Telecom Limited · 1998