H04L 9/3013
Involving the discrete logarithm problem
Official title: {involving the discrete logarithm problem, e.g. ElGamal or Diffie-Hellman systems}
H04L9/3013 (Involving the discrete logarithm problem) appears on 325 US grants and 354 published applications in this corpus.
Search patents in H04L- Granted patents
- 325
- Published applications
- 354
- Assignees
- 190
- Inventors
- 595
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 5 |
| 2002 | 8 | 11 |
| 2003 | 7 | 8 |
| 2004 | 7 | 11 |
| 2005 | 5 | 12 |
| 2006 | 5 | 11 |
| 2007 | 10 | 8 |
| 2008 | 11 | 13 |
| 2009 | 8 | 19 |
| 2010 | 11 | 20 |
| 2011 | 14 | 10 |
| 2012 | 9 | 15 |
| 2013 | 17 | 10 |
| 2014 | 13 | 15 |
| 2015 | 17 | 17 |
| 2016 | 14 | 10 |
| 2017 | 9 | 19 |
| 2018 | 11 | 21 |
| 2019 | 15 | 23 |
| 2020 | 25 | 12 |
| 2021 | 14 | 17 |
| 2022 | 17 | 18 |
| 2023 | 16 | 15 |
| 2024 | 15 | 12 |
| 2025 | 9 | 10 |
| 2026 | 12 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Exponentiation cryptographic apparatus and method362US 4,424,414 AThe Board of Trustees of the Leland Stanford Junior University · 1984
- Mixing in small batches251US 6,813,354 B1Lucent Technologies Inc. · 2004
- Method for identifying subscribers and for generating and verifying electronic signatures in a data exchange system221US 4,995,082 A1991
- Digital signature algorithm214US 5,231,668 AThe United States of America as represented by the Secretary of Commerce · 1993
- Distributed split-key cryptosystem and applications154US 6,026,163 A2000