G06Q 20/389
Keeping log of transactions for guaranteeing non-repudiation of a transaction
Official title: {Keeping log of transactions for guaranteeing non-repudiation of a transaction}
G06Q20/389 (Keeping log of transactions for guaranteeing non-repudiation of a transaction) appears on 2,945 US grants and 5,434 published applications in this corpus.
Search patents in G06Q- Granted patents
- 2,945
- Published applications
- 5,434
- Assignees
- 1,469
- Inventors
- 8,606
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 6 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 11 | 0 |
| 2001 | 6 | 3 |
| 2002 | 11 | 31 |
| 2003 | 6 | 30 |
| 2004 | 7 | 22 |
| 2005 | 12 | 30 |
| 2006 | 13 | 18 |
| 2007 | 15 | 19 |
| 2008 | 14 | 15 |
| 2009 | 22 | 24 |
| 2010 | 19 | 29 |
| 2011 | 11 | 17 |
| 2012 | 13 | 15 |
| 2013 | 21 | 18 |
| 2014 | 16 | 27 |
| 2015 | 14 | 30 |
| 2016 | 12 | 55 |
| 2017 | 14 | 68 |
| 2018 | 28 | 106 |
| 2019 | 74 | 328 |
| 2020 | 141 | 536 |
| 2021 | 229 | 619 |
| 2022 | 375 | 644 |
| 2023 | 421 | 846 |
| 2024 | 524 | 841 |
| 2025 | 523 | 618 |
| 2026 | 371 | 445 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Remote image capture with centralized processing and storage638US 5,910,988 ACSP Holdings, Inc. · 1999
- Smart electronic receipt system590US 6,341,353 B12002
- Remote image capture with centralized processing and storage537US 6,032,137 ACSP Holdings, Inc. · 2000
- Transaction protection system530US 5,426,281 A1995
- System and methods for secure transaction management and electronic rights protection486US 7,133,845 B1Intertrust Technologies Corporation · 2006