G06F 21/31
User authentication
G06F21/31 (User authentication) appears on 31,406 US grants and 38,671 published applications in this corpus.
Search patents in G06F- Granted patents
- 31,406
- Published applications
- 38,671
- Assignees
- 7,308
- Inventors
- 56,537
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 9 | 0 |
| 1988 | 8 | 0 |
| 1989 | 17 | 0 |
| 1990 | 9 | 0 |
| 1991 | 20 | 0 |
| 1992 | 19 | 0 |
| 1993 | 31 | 0 |
| 1994 | 32 | 0 |
| 1995 | 31 | 0 |
| 1996 | 48 | 0 |
| 1997 | 51 | 0 |
| 1998 | 103 | 0 |
| 1999 | 116 | 0 |
| 2000 | 125 | 0 |
| 2001 | 166 | 103 |
| 2002 | 122 | 345 |
| 2003 | 124 | 439 |
| 2004 | 142 | 499 |
| 2005 | 185 | 608 |
| 2006 | 268 | 717 |
| 2007 | 300 | 776 |
| 2008 | 313 | 859 |
| 2009 | 378 | 884 |
| 2010 | 494 | 966 |
| 2011 | 546 | 897 |
| 2012 | 754 | 1017 |
| 2013 | 1060 | 1524 |
| 2014 | 1522 | 1912 |
| 2015 | 1654 | 2044 |
| 2016 | 1775 | 2210 |
| 2017 | 1894 | 2225 |
| 2018 | 1909 | 2348 |
| 2019 | 2244 | 2694 |
| 2020 | 2399 | 2793 |
| 2021 | 2401 | 2701 |
| 2022 | 2334 | 2576 |
| 2023 | 2290 | 2277 |
| 2024 | 2276 | 2173 |
| 2025 | 2081 | 1819 |
| 2026 | 1136 | 1265 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G06F 21/32Using biometric data10,996
- G06F 21/34Involving the use of external additional devices5,531
- G06F 21/33Using certificates3,413
- G06F 21/36By graphic or iconic representation2,916
- G06F 21/316By observing the pattern of computer usage2,277
- G06F 21/41Where a single sign-on provides access to a plurality of computers1,718
- G06F 21/42Using separate channels for security data979
- G06F 21/40By quorum, i.e. whereby two or more security principals are required796
All 9 subgroupsShow fewer
Recent patents
- User interfaces for managing car key credentials6 Oct 2026US 12,752,737 B2Apple Inc.
- Unlocking XR glasses6 Oct 2026US 12,754,602 B1Snap Inc.
- Memory controller, storage device including the same, and operating method of the memory controller6 Oct 2026US 12,754,855 B2Samsung Electronics Co., Ltd.
- Adaptive language model-based solution for interactive security and safety with data privacy6 Oct 2026US 12,754,982 B2AlertEnterprise, Inc.
- Digital identity sign-in6 Oct 2026US 12,754,983 B2Early Warning Services, LLC
- Devices, Methods, and Graphical User Interfaces for Providing a Home Button Replacement8 Oct 2026US 2026/0310305 A1Apple Inc.
- System and method for an electronic signature device8 Oct 2026US 2026/0310310 A1
- Artificial intelligence (ai) agent for proactive integration recommendations8 Oct 2026US 2026/0310736 A1Boomi, LP
- Method and system for authenticating user content8 Oct 2026US 2026/0310763 A1Piamond Corp.
- Secure digital identity management system for creating and maintaining non-attributable online personas8 Oct 2026US 2026/0310764 A1
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
- Internet server access control and monitoring systems1,394US 5,708,780 AOpen Market, Inc. · 1998
- Unlocking a device by performing gestures on an unlock image1,368US 7,657,849 B2Apple Inc. · 2010
- Systems and methods for secure transaction management and electronic rights protection1,270US 5,982,891 AIntertrust Technologies Corporation · 1999
- Devices using tactile feedback to deliver silent status information1,220US 8,739,033 B2Immersion Corporation · 2014