G11B 20/00898
Based on a hash function
Official title: {based on a hash function}
G11B20/00898 (Based on a hash function) appears on 15 US grants and 16 published applications in this corpus.
Search patents in G11B- Granted patents
- 15
- Published applications
- 16
- Assignees
- 8
- Inventors
- 29
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 2 | 1 |
| 2011 | 2 | 2 |
| 2012 | 1 | 1 |
| 2013 | 2 | 2 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Detecting electronic system modification28 Apr 2026US 12,613,999 B2International Business Machines Corporation
- System and method for determining modifications of media files19 Apr 2022US 11,308,185 B1T-Mobile Innovations LLC
- Information processing apparatus and information processing method for decoding, reproducing and providing encrypted content6 Nov 2018US 10,120,984 B2Sony Corporation
- Methods and systems for encoding and protecting data using digital signature and watermarking techniques30 Sep 2014US 8,850,214 B2Intertrust Technologies Corporation
- Methods and systems for encoding and protecting data using digital signature and watermarking techniques28 May 2013US 8,452,972 B2Intertrust Technologies Corporation
- Detecting electronic system modification31 Dec 2020US 2020/0411047 A1International Business Machines Corporation
- Methods and systems for encoding and protecting data using digital signature and watermarking techniques5 Mar 2015US 2015/0067882 A1Intertrust Technologies Corporation
- Recording medium and producing method thereof, reproducing method and reproducing apparatus, and copyright managing method26 Jun 2014US 2014/0177904 A1Sony Corporation
- Methods and systems for encoding and protecting data using digital signature and watermarking techniques7 Nov 2013US 2013/0297941 A1Intertrust Technologies Corporation
- Information processing apparatus, information storage apparatus, information processing system, and information processing method and program23 May 2013US 2013/0132719 A1Sony Corporation
Most cited
By later US patents
- Methods and systems for encoding and protecting data using digital signature and watermarking techniques486US 6,785,815 B1Intertrust Technologies Corporation · 2004
- Data control system104US 6,230,268 B1International Business Machines Corporation · 2001
- Methods and systems for encoding and protecting data using digital signature and watermarking techniques96US 6,961,854 B2Intertrust Technologies Corporation · 2005
- Digital authentication with digital and analog documents65US 7,770,013 B2Digimarc Corporation · 2010
- Methods and systems for encoding and protecting data using digital signature and watermarking techniques46US 7,107,452 B2Intertrust Technologies Corporation · 2006