G06F 21/313
Using a call-back technique via a telephone network
Official title: {using a call-back technique via a telephone network}
G06F21/313 (Using a call-back technique via a telephone network) appears on 162 US grants and 150 published applications in this corpus.
Search patents in G06F- Granted patents
- 162
- Published applications
- 150
- Assignees
- 112
- Inventors
- 315
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 6 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 1 |
| 2002 | 0 | 3 |
| 2003 | 3 | 3 |
| 2004 | 1 | 5 |
| 2005 | 1 | 2 |
| 2006 | 2 | 3 |
| 2007 | 1 | 3 |
| 2008 | 2 | 4 |
| 2009 | 5 | 4 |
| 2010 | 1 | 7 |
| 2011 | 4 | 5 |
| 2012 | 1 | 4 |
| 2013 | 5 | 9 |
| 2014 | 8 | 10 |
| 2015 | 6 | 8 |
| 2016 | 12 | 6 |
| 2017 | 7 | 9 |
| 2018 | 5 | 9 |
| 2019 | 10 | 11 |
| 2020 | 10 | 8 |
| 2021 | 7 | 9 |
| 2022 | 6 | 5 |
| 2023 | 10 | 8 |
| 2024 | 8 | 7 |
| 2025 | 5 | 2 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Method and apparatus for personal identification453US 5,168,520 ASecurity Dynamics Technologies, Inc. · 1992
- Continuous authentication using an in-band or out-of-band side channel296US 5,311,596 AAT&T Bell Laboratories · 1994
- System and method for early detection and prevention of identity theft295US 7,548,886 B2International Business Machines Corporation · 2009
- Apparatus and method for monitoring electronic devices via a global network293US 6,244,758 B1Absolute Software Corporation · 2001
- System and method of using the public switched telephone network in providing authentication or authorization for online transactions252US 6,934,858 B2Authentify, Inc. · 2005