G03H 2001/0027
Being copy-protected against fraudulent replication
Official title: {Being copy-protected against fraudulent replication, e.g. by layering a filter rejecting laser lines}
G03H2001/0027 (Being copy-protected against fraudulent replication) appears on 16 US grants and 14 published applications in this corpus.
Search patents in G03H- Granted patents
- 16
- Published applications
- 14
- Assignees
- 16
- Inventors
- 53
- Latest grant
- 27 Feb 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 2 | 2 |
| 2012 | 2 | 1 |
| 2013 | 2 | 0 |
| 2014 | 1 | 2 |
| 2015 | 1 | 2 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Optical security device having a high refractive index layer between adjacent diffraction elements which have upper portions uncovered by the high refractive index layer27 Feb 2018US 9,904,249 B2CCL Secure Pty Ltd
- Polycarbonate-based security documents and/or documents of value with a hologram in the card body24 Jan 2017US 9,551,975 B2Covestro Deutschland AG
- Method for preparing a hologram recording medium13 Oct 2015US 9,158,281 B2Dai Nippon Printing Co.Ltd.
- Method for preparing a hologram recording medium10 Jun 2014US 8,749,862 B2Dai Nippon Printing Co.Ltd.
- Transmission type optical element and anti-forgery volume hologram17 Sep 2013US 8,537,445 B2Dai Nippon Printing Co.Ltd.
- Anti-counterfeiting16 Jul 2020US 2020/0223114 A1Hewlett Packard Enterprise Development LP
- Polycarbonate-based security documents and/or documents of value with a hologram in the card body6 Aug 2015US 2015/0220056 A1Bayer MaterialScience AG
- Optical security device23 Apr 2015US 2015/0109647 A1CCL Secure Pty Ltd
- Volume hologram, manufacturing method thereof, and shift method of wavelength spectrum of diffracted light20 Nov 2014US 2014/0340723 A1Sony Corporation
- Method for preparing a hologram recording medium6 Nov 2014US 2014/0327942 A1Dai Nippon Printing Co.Ltd.
Most cited
By later US patents
- Computer generated holographic microtags46US 5,729,365 ASandia Corporation · 1998
- Security diffraction devices difficult to exactly duplicate38US 4,832,445 AAmerican Bank Note Holographics, Inc. · 1989
- Monochromatic-light reproduction type hologram, and method and apparatus for its image reproduction19US 5,486,933 AToppan Printing Co., Ltd. · 1996
- Information carrier with a hologram12US 6,747,768 B1Xetos AG · 2004
- Multi-layer body with volume hologram10US 8,187,771 B2OVD Kinegram AG · 2012