H04L 9/3239
Involving non-keyed hash functions
Official title: {involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD}
H04L9/3239 (Involving non-keyed hash functions) appears on 8,816 US grants and 11,420 published applications in this corpus.
Search patents in H04L- Granted patents
- 8,816
- Published applications
- 11,420
- Assignees
- 2,761
- Inventors
- 14,362
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 6 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 3 |
| 2003 | 0 | 2 |
| 2004 | 1 | 7 |
| 2005 | 0 | 14 |
| 2006 | 6 | 12 |
| 2007 | 9 | 10 |
| 2008 | 5 | 13 |
| 2009 | 4 | 23 |
| 2010 | 12 | 14 |
| 2011 | 16 | 22 |
| 2012 | 23 | 30 |
| 2013 | 26 | 32 |
| 2014 | 36 | 40 |
| 2015 | 44 | 66 |
| 2016 | 59 | 136 |
| 2017 | 63 | 193 |
| 2018 | 123 | 355 |
| 2019 | 358 | 1460 |
| 2020 | 940 | 2561 |
| 2021 | 1471 | 2262 |
| 2022 | 1704 | 1240 |
| 2023 | 1370 | 845 |
| 2024 | 1171 | 999 |
| 2025 | 913 | 686 |
| 2026 | 448 | 394 |
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
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