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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
5013475 Optically active ester compound and liquid crystal composition containing the same May. 7, 1991
5001294 Synthesis of diaryl alkenes Mar. 19, 1991
4996237 Combretastatin A-4 Feb. 26, 1991
4985178 Nonlinear optical device from 3-methyl-4-methoxy-4'-nitrostilbene Jan. 15, 1991
RE33307 Cyclic hydroxy compounds Aug. 21, 1990
4946865 Dipropargyloxybenzene compounds and their production Aug. 7, 1990
4895672 Tolan compound and liquid crystal composition containing the same Jan. 23, 1990
4894109 Method and apparatus for tacking together the copies of multicopy forms Jan. 16, 1990
4885403 Process for making propargyl ethers of bisphenols Dec. 5, 1989
4882449 Calixarene derivatives, and use of such compounds for sequestration of metals Nov. 21, 1989
4879061 Liquid crystalline materials and method of making same Nov. 7, 1989
4871470 Cyclohexane derivatives Oct. 3, 1989
4853151 Dispirotetradecanes Aug. 1, 1989
4853414 Halogenated esters Aug. 1, 1989
4846998 Cyclohexane derivatives Jul. 11, 1989
4814521 Process for producing 2,6-dihydroxynaphthalene and 2,6-diacetoxynaphthalene Mar. 21, 1989
4814516 Novel optically active tolan derivatives Mar. 21, 1989
4782191 Process for the preparation of alkylaryl ethers Nov. 1, 1988
4778933 Process for making decabromodiphenyl oxide Oct. 18, 1988
4740638 Cyclic hydroxy compounds Apr. 26, 1988
4718966 Bonding method utilizing cyanoacrylate adhesive having calixarene accelerator Jan. 12, 1988
4714786 Vinylphenol derivatives, their preparation and their use Dec. 22, 1987
4709030 Novel liquid crystal mixtures Nov. 24, 1987
4686289 Anisotropic compounds and liquid crystal mixtures Aug. 11, 1987
4683333 Process for preparing substituted bis-ethers Jul. 28, 1987
4676604 Liquid crystals Jun. 30, 1987
4661501 Certain aryl-alkane-2-pyridyloxy-phenyl derivatives having insecticidal and acaricidal activity Apr. 28, 1987
4654421 4-substituted phenyl crotyl ether derivative Mar. 31, 1987
4654162 Alcohol derivatives Mar. 31, 1987
4652635 Method for converting ether groups to hydroxyl groups and ester groups to acid groups Mar. 24, 1987
4642349 Process for making aromatic ethers Feb. 10, 1987
4640849 Meta-bridged styryloxy resins Feb. 3, 1987
4637897 Nematic compounds Jan. 20, 1987
4627933 Liquid crystalline phases containing alkylene-type bridges Dec. 9, 1986
4621901 Novel liquid crystal mixtures Nov. 11, 1986
4620938 Hydroterphenyls Nov. 4, 1986
4614747 Derivatives of alpha-alkyl polyolefinic carboxylic acid useful in the treatment of psoriasis Sep. 30, 1986
4613682 Ether synthesis Sep. 23, 1986
4606845 Bicyclohexylethanes Aug. 19, 1986
4596896 Acid catalyzed reactions of monovinyl aromatic compounds Jun. 24, 1986
4595763 Process for preparing methyl ethers or thioethers of aryl compounds Jun. 17, 1986
4593142 Methods of alkoxylation Jun. 3, 1986
4565859 Polyether compounds, epoxy resins, epoxy resin compositions, and processes for production thereof Jan. 21, 1986
4556677 Alkane and alkene derivatives and their use Dec. 3, 1985
4554360 Process for converting aromatic compounds Nov. 19, 1985
4551264 Polyhalogenoaromatic compounds for liquid crystal compositions Nov. 5, 1985
4543397 Styryloxy resins and compositions thereof Sep. 24, 1985
4533760 Process for reducing organic compounds with calcium, amine, and alcohol Aug. 6, 1985
4528114 Acetylenes Jul. 9, 1985
4518806 Production of aryl alkyl ethers from methylbenzyl alcohol using bis-(dithiobenzyl)nickel(II) catalyst May. 21, 1985

1 2 3 4 5 6










 
 
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