Patents-Review.com
ClassID:

104788 ⎘

C09K19/3452 - CPC Classification

Classification description:

Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit; Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom the heterocyclic ring being a six-membered aromatic ring containing two nitrogen atoms Pyrazine

Recent Application in this class:
#1
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2025-10-16

FERROELECTRIC SMECTIC LIQUID CRYSTALLINE MEDIUM

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20220298418
2022-09-22

Compositions of polymerizable liquid crystals

 #3
20210062092
2021-03-04

Polymerizable liquid crystal compound, liquid crystal composition for optical element, polymer, optically anisotropic body, and optical element for display device

 #4
20170174992
2017-06-22

Polymerizable liquid crystal compound, composition, liquid crystal polymerization film-kind thereof and use thereof

 #5
20150316695
2015-11-05

Polycyclic organic compound, optically anisotropic film and method of production thereof

 #6
20140192306
2014-07-10

Alignment layer and liquid crystal display having the same

 #7
20130228720
2013-09-05

Chiral compounds, cholesteric and ferroelectric liquid crystal compositions comprising these chiral compounds, and liquid crystal displays comprising these liquid crystal compositions

 #8
20130083284
2013-04-04

Switch element comprising a liquid-crystalline medium

 #9
20130037746
2013-02-14

Optical switch element comprising a liquid-crystalline medium

 #10
20110233463
2011-09-29

CHIRAL COMPOUNDS, CHOLESTERIC AND FERROELECTRIC LIQUID CRYSTAL COMPOSITIONS COMPRISING THESE CHIRAL COMPOUNDS, AND LIQUID CRYSTAL DISPLAYS COMPRISING THESE LIQUID CRYSTAL COMPOSITIONS

 #11
20110026117
2011-02-03

LYOTROPIC LIQUID CRYSTAL SYSTEMS BASED ON BISACENAPHTHOPYRAZINOQUINOXALINE DERIVATIVES AND METHODS OF MAKING

 #12
20100215954
2010-08-26

Polycyclic organic compound, optically anisotropic film and method of production thereof

 #13
20100128211
2010-05-27

BIREFRINGENT FILM, LAMINATED FILM, AND IMAGE DISPLAY DEVICE

 #14
20100047485
2010-02-25

POLARIZING FILM

 #15
20100047483
2010-02-25

BIREFRINGENT FILM, LAMINATED FILM, AND IMAGE DISPLAY DEVICE

 #16
20080224095
2008-09-18

Birefringent film, polycyclic compound, coating liquid, and image display device

 #17
20080117371
2008-05-22

Alignment layer and liquid crystal display having the same

 #18
20070248771
2007-10-25

Acenaphtho[1,2-b]quinoxaline sulfo-and carboxy-derivative, lyotropic liquid crystal system, optically anisotropic film and method thereof and laminated optical film

 #19
20050196550
2005-09-08

Compensator for liquid crystal display

 #20
20050109986
2005-05-26

Sulfoderivatives of acenaphtho[1,2-]quinoxaline, lyotropic liquid crystal and anisotropic film on their base