Organic compounds (class 532, subclass 1) > Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or nitrogen as the only ring hetero atoms (class 540, subclass 1) > Sulfur containing hetero ring (e.g., thiiranes, etc.) > The hetero ring is five-membered > Polycyclo ring system having the hetero ring as one of the cyclos > Tricyclo ring system having the hetero ring as one of the cyclos > Patents

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Class Information
Number: 549/43
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or nitrogen as the only ring hetero atoms (class 540, subclass 1) > Sulfur containing hetero ring (e.g., thiiranes, etc.) > The hetero ring is five-membered > Polycyclo ring system having the hetero ring as one of the cyclos > Tricyclo ring system having the hetero ring as one of the cyclos
Description: Compounds wherein the polycyclo ring system consists of exactly three rings.

Sub-classes under this class:

Class Number	Class Name	Patents
549/44	Chalcogen attached directly to the tricyclo ring system by nonionic bonding	75

Patents under this class:

1 2 3

Patent Number	Title Of Patent	Date Issued
7618718	Light-emitting material and organic electroluminescent device using the same	Nov. 17, 2009
7524922	Poly(benzodithiophenes)	Apr. 28, 2009
7521170	Photoactive compounds	Apr. 21, 2009
7402607	DNA-PK inhibitors	Jul. 22, 2008
7390613	Photoactive compounds	Jun. 24, 2008
7384974	4,5-dihydronaphtho[1,2-b]thiophene derivative	Jun. 10, 2008
7358248	Substituted amino carboxylic acids	Apr. 15, 2008
7332615	Hydrophilic analogs of 4,8-dihydrobenzodithiophene-4,8-diones as anticancer agents	Feb. 19, 2008
7332492	Amino substituted dibenzothiophene derivatives for the treatment of disorders mediated by NP Y5 receptor	Feb. 19, 2008
7332519	Spirocyclic cyclohexane compounds	Feb. 19, 2008
7288560	Spirocyclic cyclohexane derivatives	Oct. 30, 2007
7253292	Synthesis of cyclopentadiene derivatives	Aug. 7, 2007
7244516	Organic electroluminescence device	Jul. 17, 2007
7241903	Metallocenes, use in catalyst system for producing olefin polymers	Jul. 10, 2007
7175961	Photopatternable molecular circuitry	Feb. 13, 2007
7144885	Fused tricyclic heterocycles useful for treating hyper-proliferative disorders	Dec. 5, 2006
7135579	Dibenzothiophene oxide compound, and process for producing the same	Nov. 14, 2006
7101998	Fused ring compounds, and their use as cationic photoinitiators	Sep. 5, 2006
7101905	Pharmaceutically active compounds and methods of use	Sep. 5, 2006
6967216	Amino substituted dibenzothiophene derivatives for the treatment of disorders mediated by NP Y5 receptor	Nov. 22, 2005
6943275	Process of preparing a disubstituted 9-alkylidenefluorene or a derivative thereof	Sep. 13, 2005
6930190	Process for the preparation of heterocyclic pentalene derivatives	Aug. 16, 2005
6916938	Method for preparing sulfone or sulfoxide compound	Jul. 12, 2005
6913710	Reactive mesogenic benzodithiophenes	Jul. 5, 2005
6894177	Intermediate compounds of non-nucleoside reverse transcriptase inhibitors	May. 17, 2005
6849202	COMPOUND HAVING PHENYLACETYLENE STRUCTURE, LIQUID CRYSTAL COMPOSITION, POLYMER, OPTICALLY ANISOTROPIC PRODUCT, OPTICAL OR LIQUID CRYSTAL ELEMENT, DIBENZOTHIOPHENE COMPOUND, INTERMEDIATE, AND P	Feb. 1, 2005
6825357	Benzodioxinothiophenes, their preparation and use	Nov. 30, 2004
6818260	Thienothiophene derivatives	Nov. 16, 2004
6800656	Tricyclic compounds and method of treating herpes virus	Oct. 5, 2004
6693136	Fluorenes and anthracenes that inhibit P2X3 and P2X2/3 containing receptors	Feb. 17, 2004
6645401	Conjugated copolymers of dithienothiophene with vinylene or acetylene	Nov. 11, 2003
6620835	Method of inhibiting matrix metalloproteinases	Sep. 16, 2003
6602903	Substituted heterocyclic compounds	Aug. 5, 2003
6555697	Method of preparing a benzofuran or benzothiophene compound	Apr. 29, 2003
6514967	Compound for preparing medicines for treating pathologies involving extracellular glutamate, and methods for obtaining same	Feb. 4, 2003
6515144	Oligothiophenes and synthesis thereof	Feb. 4, 2003
6455684	Insitu assay of substance in biological sample using labeled probe	Sep. 24, 2002
6429312	N-aminoalkyldibenzothiopencarboxamide receptor subtype specific ligands	Aug. 6, 2002
6423870	Tricyclic compounds, preparation method and pharmaceutical compositions containing same	Jul. 23, 2002
6420413	Heterocycloalkylbenzocyclobutane and heteroarylbenzocyclobutane compounds	Jul. 16, 2002
6403809	Compounds for electronic devices	Jun. 11, 2002
6359148	3-arylbenzofuranones as stabilizers	Mar. 19, 2002
6353102	Photochromic naphthopyrans	Mar. 5, 2002
6339172	Assay of substance in biological sample using labeled probe	Jan. 15, 2002
6337346	Naphtho- and dihydrobenzo-thiophene derivatives as cytotoxic antitumor agents	Jan. 8, 2002
6300339	Compounds, their preparation and use	Oct. 9, 2001
6262055	HIV integrase inhibitors	Jul. 17, 2001
6251936	Benzothiophenes, benzofurans, and indoles useful in the treatment of insulin resistance and hyperglycemia	Jun. 26, 2001
6211369	Spiro compounds and the use thereof	Apr. 3, 2001
6201004	Dioxino derivatives and their use as therapeutic agents	Mar. 13, 2001