G07D 7/005
Testing security markings invisible to the naked eye
Official title: Testing security markings invisible to the naked eye, e.g. verifying thickened lines or unobtrusive markings or alterations
G07D7/005 (Testing security markings invisible to the naked eye) appears on 304 US grants and 337 published applications in this corpus.
Search patents in G07D- Granted patents
- 304
- Published applications
- 337
- Assignees
- 123
- Inventors
- 383
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 4 | 6 |
| 2003 | 5 | 20 |
| 2004 | 10 | 5 |
| 2005 | 9 | 27 |
| 2006 | 19 | 13 |
| 2007 | 10 | 12 |
| 2008 | 27 | 35 |
| 2009 | 16 | 22 |
| 2010 | 22 | 25 |
| 2011 | 31 | 20 |
| 2012 | 20 | 18 |
| 2013 | 5 | 10 |
| 2014 | 12 | 8 |
| 2015 | 9 | 11 |
| 2016 | 8 | 13 |
| 2017 | 11 | 14 |
| 2018 | 5 | 10 |
| 2019 | 18 | 13 |
| 2020 | 11 | 14 |
| 2021 | 9 | 9 |
| 2022 | 5 | 10 |
| 2023 | 10 | 6 |
| 2024 | 5 | 3 |
| 2025 | 8 | 7 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Engraved modulated piece9 Jun 2026US 12,649,296 B2Boegli-Gravures S.A.
- Security article authentication16 Sep 2025US 12,415,376 B2Viavi Solutions Inc.
- Method of detecting a concealed pattern5 Aug 2025US 12,380,306 B2PPG Industries Ohio, Inc.
- Forming, authenticating and securing non-fungible items10 Jun 2025US 12,327,258 B2Elite Coinage Co.
- Authentication of identifiers by light scattering20 May 2025US 12,307,323 B2Arizona Board of Regents on behalf of Arizona State University
- Biodegradable value-document substrate17 Sep 2026US 2026/0273985 A1Giesecke+Devrient Currency Technology GmbH
- Transport Unit for a Device for Handling Value Notes30 Apr 2026US 2026/0116684 A1Diebold Nixdorf Systems GmbH
- Image processor, image reading device, image forming apparatus, medical information management system, image processing method, and non-transitory recording medium26 Mar 2026US 2026/0089283 A1Ricoh Company, Ltd.
- Forming, authenticating and securing non-fungible items19 Feb 2026US 2026/0050934 A1Elite Coinage Co.
- Authentication of identifiers by light scattering15 Jan 2026US 2026/0017475 A1Arizona Board of Regents on behalf of Arizona State University
Most cited
By later US patents
- Method and system for digital image signatures682US 5,721,788 ACorbis Corporation · 1998
- Method for encoding auxiliary data within a source signal283US 5,809,160 ADigimarc Corporation · 1998
- Authentication method and system225US 8,171,567 B1Tracer Detection Technology Corp. · 2012
- Photoluminescent markings with functional overlayers216US 8,247,761 B1Performance Indicator, LLC · 2012
- Method for image encoding209US 5,930,377 ADigimarc Corporation · 1999