B42D 25/364
Liquid crystals
B42D25/364 (Liquid crystals) appears on 268 US grants and 352 published applications in this corpus.
Search patents in B42D- Granted patents
- 268
- Published applications
- 352
- Assignees
- 101
- Inventors
- 461
- 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 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 3 |
| 2003 | 3 | 7 |
| 2004 | 2 | 4 |
| 2005 | 4 | 9 |
| 2006 | 6 | 10 |
| 2007 | 5 | 18 |
| 2008 | 4 | 21 |
| 2009 | 5 | 17 |
| 2010 | 11 | 17 |
| 2011 | 9 | 13 |
| 2012 | 18 | 12 |
| 2013 | 12 | 18 |
| 2014 | 19 | 17 |
| 2015 | 11 | 10 |
| 2016 | 9 | 12 |
| 2017 | 11 | 25 |
| 2018 | 13 | 31 |
| 2019 | 28 | 16 |
| 2020 | 22 | 18 |
| 2021 | 14 | 25 |
| 2022 | 11 | 17 |
| 2023 | 9 | 11 |
| 2024 | 13 | 12 |
| 2025 | 15 | 5 |
| 2026 | 3 | 4 |
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
- Identification medium, article, and identification medium use method12 May 2026US 12,623,481 B2Zeon Corporation
- Compositions, comprising silver nanoplatelets6 Jan 2026US 12,515,253 B2BASF SE
- Display medium, display product, and display set5 Aug 2025US 12,379,535 B2Zeon Corporation
- Magnetic assemblies and processes for producing optical effect layers comprising oriented non-spherical magnetic or magnetizable pigment particles8 Jul 2025US 12,350,953 B2Sicpa Holding SA
- Compositions, comprising silver nanoplatelets8 Oct 2026US 2026/0307149 A1BASF SE
- Dual color shift security film23 Jul 2026US 2026/0208521 A1
- Security element having a motif-forming liquid-crystal layer30 Apr 2026US 2026/0116115 A1Giesecke+Devrient Currency Technology GmbH
- Liquid Crystal Film With Intelligent Information Encryption Function, And Preparation Method And Application Thereof19 Mar 2026US 2026/0077612 A1Peking University
- Laminated card comprising a thermochromic pattern and method for manufacturing such a card20 Nov 2025US 2025/0353037 A1Idemia France
Most cited
By later US patents
- Retroreflective security laminates with dual level verification114US 5,169,707 AMinnesota Mining and Manufacturing Company · 1992
- Micro-optic security and image presentation system87US 7,333,268 B2Nanoventions Holdings, LLC · 2008
- Security element and method for producing same87US 7,728,931 B2Giesecke & Devrient GmbH · 2010
- Security document86US 4,889,366 A1989
- Optical component with plural orientation layers on the same substrate wherein the surfaces of the orientation layers have different patterns and direction84US 5,903,330 ARolic AG · 1999