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Class Information
Number: 544/1
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) > Hetero ring is six-membered having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazines, etc.)
Description: Compounds under Class 540, ... which contain a six-membered hetero ring having two or more ring hetero atoms of which at least one is nitrogen.

Sub-classes under this class:

Class Number Class Name Patents
544/179 Tetrazines 170
544/180 Triazines 504
544/2 Six-membered hetero ring consists of oxygen, sulfur, nitrogen and carbon (e.g., oxathiazines, etc.) 131
544/224 The six-membered hetero ring consists of two nitrogens and four carbons (e.g., 1,2-diazines, etc.) 815
544/3 Six-membered hetero ring consists of sulfur, nitrogen, and carbon 215
544/63 Six-membered hetero ring consists of oxygen, nitrogen and carbon (e.g., 1,2-oxazines, etc) 294

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8703437 Fluorogenic sensors for phospholipase C isozymes Apr. 22, 2014
8663804 Printed wiring board encapsulated by adhesive laminate comprising a di-isoimide, and process for preparing same Mar. 4, 2014
8580386 Laminate comprising curable epoxy film layer comprising a di-isoimide and process for preparing same Nov. 12, 2013
8557847 Synergistic modulation of FLT3 kinase using a FLT3 inhibitor and a farnesyl transferase inhibitor Oct. 15, 2013
8541423 Methods and compositions for treating pain Sep. 24, 2013
8524936 Manufacturing process for sitagliptin from L-aspartic acid Sep. 3, 2013
8524896 Chemical compounds Sep. 3, 2013
8519125 Compositions and methods for biological sample storage Aug. 27, 2013
8512755 Compact multifunctional ligand to enhance colloidal stability of nanoparticles Aug. 20, 2013
8450398 Oxygen scavengers, compositions comprising the scavengers, and articles made from the compositions May. 28, 2013
8362239 Heteroaromatic phthalonitriles Jan. 29, 2013
8222403 Heteroaromatic phthalonitriles Jul. 17, 2012
8207332 Methods of attaching biological compounds to solid supports using triazine Jun. 26, 2012
8193388 Compounds for depositing tellurium-containing films Jun. 5, 2012
8188269 Functionalized compositions for improved immobilization May. 29, 2012
8134146 Heterocyclic radical or diradical, the dimers, oligomers, polymers, dispiro compounds and polycycles thereof, the use thereof, organic semiconductive material and electronic or optoelectronic Mar. 13, 2012
8133847 Pyrido[2,3-B]pyrazine derivatives useful as herbicidal compounds Mar. 13, 2012
8105504 Stabilization of organic materials Jan. 31, 2012
8008315 Benzylether and benzylamino beta-secretase inhibitors for the treatment of alzheimer's disease Aug. 30, 2011
7981874 Phosphorus derivatives as histone deacetylase inhibitors Jul. 19, 2011
7977476 Methods of attaching biological compounds to solid supports using triazine Jul. 12, 2011
7901667 Bridgehead labelled compounds and methods of using the same Mar. 8, 2011
7863058 Methods of attaching biological compounds to solid supports using triazine Jan. 4, 2011
7795279 Method of inhibiting FLT3 kinase Sep. 14, 2010
7728128 Dibenzo[c,h][1,5]naphthyridines and their use as DNA probes Jun. 1, 2010
7629108 Nitrogen-containing organic compound, resist composition and patterning process Dec. 8, 2009
7528137 Compounds, compositions, and methods May. 5, 2009
7504499 Methods of attaching biological compounds to solid supports using triazine Mar. 17, 2009
7498436 Substituted hydroxyethylamines Mar. 3, 2009
7407948 Photosensitisers and their uses Aug. 5, 2008
7361755 Transition-metal-catalyzed process for the conversion of alkenes to sterically hindered substituted n-alkoxyamines Apr. 22, 2008
7345301 Mixtures of matrix materials and organic semiconductors capable of emission, use of the same and electronic components containing said mixtures Mar. 18, 2008
7294738 Phosphorous containing steroid mimics Nov. 13, 2007
7259258 Methods of attaching biological compounds to solid supports using triazine Aug. 21, 2007
7250511 Process for the preparation of cyclopenta[g]quinazoline derivatives Jul. 31, 2007
7214794 Ceramide analogs, process for their preparation and their use as antitumor agents May. 8, 2007
7214800 Compounds, compositions, and methods May. 8, 2007
7186834 Substituted iminoazines Mar. 6, 2007
7135047 M-phenylenediamine derivatives as coupler components for the coloring of keratinic fibers Nov. 14, 2006
7132295 Isotopically coded affinity markers 3 Nov. 7, 2006
7022849 Quinazoline and pyrido[2,3-d]pyrimidine inhibitors of phosphodiesterase (PDE) 7 Apr. 4, 2006
7018840 Fluorescent metal sensors, and methods of making and using the same Mar. 28, 2006
6956109 Ceramide analogs, process for their preparation and their use as antitumor agents Oct. 18, 2005
6936597 Prodrugs of anticancer agents employing substituted aromatic acids Aug. 30, 2005
6855503 Heterocyclic FRETdye cassettes for labeling biological molecules and their use in DNA sequencing Feb. 15, 2005
6846915 Hydroxypyridonate and hydroxypyrimidinone chelating agents Jan. 25, 2005
6803447 Preparation of supramolecular polymers by copolymerization of monomers containing quadruple hydrogen bonding units with regular monomers Oct. 12, 2004
6797522 Synthetic receptors Sep. 28, 2004
6699979 Oligonucleotides having chiral phosphorus linkages Mar. 2, 2004
6664398 Derivatives of erythromycin, their preparation process and their use as medicaments Dec. 16, 2003

1 2 3

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