G11B 20/00666
Involving a step of erasing or nullifying data
Official title: {involving a step of erasing or nullifying data, e.g. data being overwritten with a random string}
G11B20/00666 (Involving a step of erasing or nullifying data) appears on 140 US grants and 173 published applications in this corpus.
Search patents in G11B- Granted patents
- 140
- Published applications
- 173
- Assignees
- 72
- Inventors
- 299
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 4 |
| 2002 | 4 | 14 |
| 2003 | 5 | 20 |
| 2004 | 2 | 5 |
| 2005 | 3 | 15 |
| 2006 | 8 | 17 |
| 2007 | 11 | 23 |
| 2008 | 4 | 22 |
| 2009 | 14 | 14 |
| 2010 | 20 | 5 |
| 2011 | 8 | 5 |
| 2012 | 11 | 9 |
| 2013 | 7 | 5 |
| 2014 | 13 | 6 |
| 2015 | 3 | 3 |
| 2016 | 4 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 2 | 2 |
| 2020 | 1 | 1 |
| 2021 | 2 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 2 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Unauthorized readout prevention mechanism and unmanned vehicle24 Mar 2026US 12,583,633 B2NEC Corporation
- Magnetic disk device21 Jan 2025US 12,205,617 B2Kabushiki Kaisha Toshiba
- Method and system for verifying a data erasure process10 May 2022US 11,328,069 B2Blancco Technology Group IP Oy
- Concurrent secure communication generation29 Jun 2021US 11,049,521 B2International Business Machines Corporation
- Erasure of data from a memory of a data storage apparatus by identifying available free space in the memory and iteratively writing a sequence of files decreasing size to the memory using a file-based protocol23 Mar 2021US 10,956,080 B2Blancco Technology Group IP Oy
- Unauthorized readout prevention mechanism and unmanned vehicle3 Oct 2024US 2024/0327043 A1NEC Corporation
- Magnetic disk device5 Sep 2024US 2024/0296869 A1Kabushiki Kaisha Toshiba
- Concurrent secure communication generation24 Sep 2020US 2020/0302968 A1International Business Machines Corporation
- Method and System for Verifying a Data Erasure Process26 Dec 2019US 2019/0392153 A1Blancco Technology Group IP Oy
- Data Erasure Method and Apparatus11 Jul 2019US 2019/0212942 A1Blancco Technology Group IP Oy
Most cited
By later US patents
- System for controlling access and distribution of digital property1,018US 5,933,498 AMRJ, Inc. · 1999
- System for controlling access and distribution of digital property681US 6,314,409 B1Veridian Information Solutions, Inc. · 2001
- Method and apparatus for copy protection258US 6,523,113 B1Apple Computer, Inc. · 2003
- Method for retrieving secure information from a database170US 5,473,687 AInfosafe Systems, Inc. · 1995
- Storage device having a nonvolatile memory for storing user changeable operating parameters163US 5,930,358 AMitsubishi Chemical America, Inc. · 1999