B42D 25/391
Absorbing or reflecting polarised light
Official title: absorbing or reflecting polarised light
B42D25/391 (Absorbing or reflecting polarised light) appears on 123 US grants and 147 published applications in this corpus.
Search patents in B42D- Granted patents
- 123
- Published applications
- 147
- Assignees
- 64
- Inventors
- 240
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 2 |
| 2004 | 3 | 6 |
| 2005 | 3 | 1 |
| 2006 | 3 | 4 |
| 2007 | 1 | 12 |
| 2008 | 4 | 11 |
| 2009 | 1 | 5 |
| 2010 | 7 | 10 |
| 2011 | 3 | 11 |
| 2012 | 6 | 7 |
| 2013 | 8 | 9 |
| 2014 | 12 | 14 |
| 2015 | 8 | 7 |
| 2016 | 7 | 5 |
| 2017 | 11 | 3 |
| 2018 | 5 | 7 |
| 2019 | 4 | 4 |
| 2020 | 6 | 6 |
| 2021 | 5 | 8 |
| 2022 | 3 | 5 |
| 2023 | 3 | 3 |
| 2024 | 4 | 4 |
| 2025 | 6 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical structure having a relief effect30 Jun 2026US 12,668,076 B2Oberthur Fiduciaire SAS
- Composite security element29 Jul 2025US 12,370,824 B2IQS GROUP s.r.o.
- Method for manufacturing display body, display body, and method for verifying authenticity of display body29 Apr 2025US 12,288,120 B2Toppan Inc.
- Optical laminate and method for determining authenticity thereof, and article4 Mar 2025US 12,242,093 B2Zeon Corporation
- Pigment composition, identification medium, and authenticity determination method25 Feb 2025US 12,234,365 B2Zeon Corporation
- Compositions, comprising silver nanoplatelets8 Oct 2026US 2026/0307149 A1BASF SE
- Security element having a motif-forming liquid-crystal layer30 Apr 2026US 2026/0116115 A1Giesecke+Devrient Currency Technology GmbH
- Security element with motif-forming liquid-crystal layer14 Nov 2024US 2024/0375423 A1Giesecke+Devrient Currency Technology GmbH
- Optical laminate and method for determining authenticity thereof, and article18 Jul 2024US 2024/0241299 A1Zeon Corporation
- Optical laminate, method for determining authenticity thereof, and article11 Jul 2024US 2024/0231144 A1Zeon Corporation
Most cited
By later US patents
- Solidified liquid crystals of cellulose with optically variable properties178US 5,629,055 APulp and Paper Research Institute of Canada · 1997
- Information-recorded media and methods for reading the information159US 5,856,048 ADai Nippon Printing Co.Ltd. · 1999
- Increased-security identification card system144US 5,284,364 AAnvik Corporation · 1994
- Security element and method for producing same87US 7,728,931 B2Giesecke & Devrient GmbH · 2010
- Image presentation and micro-optic security system58US 7,468,842 B2Nanoventions Holdings, LLC · 2008