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Class Information
Number: 568/631
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Oxygen containing (e.g., perchlorylbenzene, etc.) > Ethers > Benzene ring containing > Ether oxygen bonded directly to benzene ring > Plural rings containing
Description: Compounds which contain at least two rings.

Sub-classes under this class:

Class Number Class Name Patents
568/647 Halogen containing 161
568/642 Plural benzene rings bonded directly to each other 128
568/640 Plural benzene rings bonded directly to the same carbon 121
568/635 Plural benzene rings bonded directly to the same oxygen 111
568/632 Polycyclo ring system 184
568/644 Polyoxy 174

Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8691845 Tetra-O-substituted butane-bridge modified NDGA derivatives, their synthesis and pharmaceutical use Apr. 8, 2014
8603359 Four-ring compound having a plurality of CF.sub.2O bonding groups, liquid crystal composition and liquid crystal display device Dec. 10, 2013
8557142 Compounds for a liquid crystal medium and high-frequency components containing said liquid crystal medium Oct. 15, 2013
8551359 Liquid-crystalline compounds and liquid-crystalline media Oct. 8, 2013
8450532 Compounds useful in the preparation of tryptophan hydroxylase inhibitors May. 28, 2013
8383865 Curcumin derivatives Feb. 26, 2013
8197722 Two-photon or higher-order absorbing optical materials and methods of use Jun. 12, 2012
8106243 Process for producing cyclohexylbenzene Jan. 31, 2012
8084648 Process for producing cyclohexylbenzene Dec. 27, 2011
8030512 Polycyclic pentafluorosulfanylbenzene compound and process for producing the compound Oct. 4, 2011
7951432 Five-ring liquid crystal compound having cyclohexane ring, liquid crystal composition, and liquid crystal display device May. 31, 2011
7820721 Compounds for the treatment of metabolic disorders Oct. 26, 2010
7785675 Compound and liquid crystal composition Aug. 31, 2010
7777084 Cyclopropanation process Aug. 17, 2010
7700657 Vitamin D analogs Apr. 20, 2010
7625499 Conductive liquid-crystal material, process for producing the same, liquid-crystal composition, liquid crystal semiconductor element, and information memory medium Dec. 1, 2009
7482494 Benzene derivative having long, linear conjugated structure, process for producing benzene derivative, and charge-transport material Jan. 27, 2009
7268252 Binaphthol derivatives and their use in optical resolution or optical transformation Sep. 11, 2007
7220784 Substituted stilbenes and their reactions May. 22, 2007
7179946 Copper complexes and their use Feb. 20, 2007
7126031 Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom Oct. 24, 2006
7122708 High-functionality polyether polyols and preparation thereof Oct. 17, 2006
7115784 Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds Oct. 3, 2006
7045660 Compounds as PDE IV and TNF-inhibitors May. 16, 2006
6864397 Difluoromethyl ether derivative and process for producing the same Mar. 8, 2005
6841502 Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom Jan. 11, 2005
6835786 (Meth)acrylate compound and cured product thereof Dec. 28, 2004
6822114 Process for production of fluoroalkoxy-substituted benzamides and their intermediates Nov. 23, 2004
6770463 Process for the preparation of chiral isofluoroenes Aug. 3, 2004
6750372 Process for producing aryl ether Jun. 15, 2004
6703504 Conformationally constrained compounds as dendrimer cores Mar. 9, 2004
6689922 Vitamin D analogues Feb. 10, 2004
6610705 Process for the preparation of diaryl naphthyl methanes Aug. 26, 2003
6608212 Process for preparing vinylaromatic compounds Aug. 19, 2003
6596907 Process for the preparation of 4,4'-dihalogen-o-hydroxydiphenyl compounds Jul. 22, 2003
6583307 Convenient and efficient Suzuki-Miyaura cross-coupling catalyzed by a palladium/diazabutadiene system Jun. 24, 2003
6573278 Aryl sulfonamides and analogues thereof and their use in the treatment of neurodegenerative diseases Jun. 3, 2003
6555287 Non-subliming, difunctionalized ultraviolet dyes for use in anti-reflective coatings Apr. 29, 2003
6552213 Stereoselective route to produce tris-O-substituted-(E)-1-(3,5-dihydroxyphenyl)-2-(4-hydroxyphenyl)ethene, an intermediate in the synthesis of trans-resveratrol Apr. 22, 2003
6552214 Antimicrobial compound Apr. 22, 2003
6541673 Process for oxyalkylating phenolic compounds Apr. 1, 2003
6528676 Estrogenic compounds as anti-mitotic agents Mar. 4, 2003
6444858 Method of reducing flock during alkoxylation Sep. 3, 2002
6420130 Optical molecular sensors for cytochrome P450 activity Jul. 16, 2002
6379590 Method for making unsymmetrically substituted fluorenyl compounds for nonlinear optical applications Apr. 30, 2002
6369265 Use of a catalyst system comprising nickel, palladium, or platinum and imidazoline-2-ylidene or imidazolidine-2-ylidene in kumada coupling reactions Apr. 9, 2002
6350875 Synthesis of cyclooctatetraene derivatives and their use as electron transporters in organic light emitting diodes Feb. 26, 2002
6333080 Liquid-crystal alkenyltolan derivative, liquid-crystal composition, and liquid-crystal display element Dec. 25, 2001
6323376 Process for preparing alkoxy or arylmethoxy aroxyethanes Nov. 27, 2001

1 2 3 4 5 6

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