Patents by Inventor Steven I. Dworetzky

Steven I. Dworetzky has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20090005304
    Abstract: An isolated polynucleotide encoding a novel potassium channel polypeptide, KCNQ5, that is expressed primarily in brain and skeletal muscle is described. The new polypeptide has been cloned and isolated from a human brain cDNA library and is a member the KCNQ family of potassium channels. The provided human KCNQ5 nucleic acid sequence and encoded polypeptide can be employed for diagnostic, screening and therapeutic uses.
    Type: Application
    Filed: June 28, 2007
    Publication date: January 1, 2009
    Inventors: Steven I. Dworetzky, Chandra S. Ramanathan, Joanne T. Trojnacki, Christopher G. Boissard, Valentin K. Gribkoff
  • Patent number: 6893858
    Abstract: An isolated polynucleotide encoding a novel potassium channel polypeptide, KCNQ5, that is expressed primarily in brain and skeletal muscle is described. The new polypeptide has been cloned and isolated from a human brain cDNA library and is a member the KCNQ family of potassium channels. The provided human KCNQ5 nucleic acid sequence and encoded polypeptide can be employed for diagnostic, screening and therapeutic uses.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: May 17, 2005
    Assignee: Bristol-Myers Squibb Company
    Inventors: Steven I. Dworetzky, Chandra S. Ramanathan, Joanne T. Trojnacki, Valentin K. Gribkoff
  • Patent number: 6855829
    Abstract: Compounds which function as modulators, particularly, openers, of human KCNQ potassium channel proteins or polypeptides, particularly, central nervous system (CNS)-located KCNQ potassium channels, and heteromultimers thereof, and their use in the treatment of migraine are provided by the present invention. One novel type of potassium channel polypeptide openers provided by the present invention is the fluorooxindole compounds, described for the first time as therapeutics for the treatment of migraine by preventing the asynchronous firing of neurons. Other KCNQ potassium channel opener compounds that are also useful in the treatments of the invention include 2,4-disubstituted pyrimidine-5-carboxamide derivatives. One or more of the compounds according to the present invention may be utilized alone, in combination, or in conjunction with other treatment modalities for reducing, ameliorating and/or alleviating migraine or diseases similar to, or mechanistically related to, migraine, e.g., cluster headache.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: February 15, 2005
    Assignee: Bristol-Myers Squibb Company
    Inventors: Steven I. Dworetzky, Valentin K. Gribkoff, Gene G. Kinney, Piyasena Hewawasam
  • Patent number: 6831080
    Abstract: There is provided novel cinnamide derivatives of Formula I: wherein R is C1-4 alkyl or trifluoromethyl; R1 is selected from the group consisting of pyridinyl, quinolinyl, thienyl, furanyl, 1,4-benzodioxanyl, 1,3-benzodioxolyl, chromanyl, indanyl, biphenylyl, phenyl and substituted phenyl in which said substituted phenyl is substituted with one or two substituents each independently selected-from the group consisting of halogen, C1-4 alkyl, C1-4 alkoxy, trifluoromethyl, trifluoromethoxy and nitro; R2 and R3 are each independently selected from the group consisting of hydrogen, C1-4 alkyl, and halogen; R4 is selected from the group consisting of di(C1-4 alkyl)amino, trifluoromethoxy and optionally substituted morpholin-4-yl, pyridinyl, pyrimidinyl, piperazinyl, and pyrazinyl with one or two substituents in which said substituent is independently selected from the group consisting of C1-4 alkyl, aminomethyl, hydroxymethyl, chloro or fluoro; R5 is hydrogen, chloro or fluoro; or R4 and R5 taken t
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: December 14, 2004
    Assignee: Bristol-Myers Squibb Company
    Inventors: Yong-Jin Wu, Li-Quang Sun, Jie Chen, Huan He, Alexandre L'Heureux, Pierre Dextraze, Jean-Paul Daris, Gene G. Kinney, Steven I. Dworetzky, Piyasena Hewawasam
  • Publication number: 20030166650
    Abstract: There is provided novel cinnamide derivatives of Formula I 1
    Type: Application
    Filed: May 31, 2002
    Publication date: September 4, 2003
    Inventors: Yong-Jin Wu, Li-Quang Sun, Jie Chen, Huan He, Alexandre L'Heureux, Pierre Dextraze, Jean-Paul Daris, Gene G. Kinney, Steven I. Dworetzky, Piyasena Hewawasam
  • Publication number: 20020183335
    Abstract: There is provided a method of treatment for disorders responsive to the modulation of KCNQ potassium channels by administering to a mammal in need thereof a therapeutically effective amount of a 2,4-disubstituted pyrimidine-5-carboxamide derivative of the Formula I 1
    Type: Application
    Filed: February 14, 2002
    Publication date: December 5, 2002
    Inventors: Piyasena Hewawasam, Dharmpal S. Dodd, Charles D. Weaver, Pierre Dextraze, Valentin K. Gribkoff, Gene G. Kinney, Steven I. Dworetzky
  • Publication number: 20020156120
    Abstract: There is provided novel 3-fluoro-3-phenyl oxindole derivatives of Formula I 1
    Type: Application
    Filed: February 14, 2002
    Publication date: October 24, 2002
    Inventors: Piyasena Hewawasam, Pierre Dextraze, Valentin K. Gribkoff, Gene G. Kinney, Steven I. Dworetzky
  • Patent number: 6469042
    Abstract: There is provided novel 3-fluoro-3-phenyl oxindole derivatives of Formula I wherein R1, R2, R3 and R4 each are independently hydrogen, C1-4 alkyl, halogen, fluoromethyl, trifluoromethyl, phenyl, 4-methylphenyl or 4-trifluoromethylphenyl; R5 is C1-6 alkyl optionally substituted with one to three same or different groups selected from fluoro and chloro, provided R5 is not C1-6 alkyl when Y is O; Y is O or S; and R6 and R7 each are independently hydrogen, chloro, bromo or trifluoromethy; which are openers of the KCNQ potassium channels and are useful in the treatment of disorders which are responsive to the opening of the KCNQ potassium channels.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: October 22, 2002
    Assignee: Bristol-Myers Squibb Company
    Inventors: Piyasena Hewawasam, Pierre Dextraze, Valentin K. Gribkoff, Gene G. Kinney, Steven I. Dworetzky
  • Publication number: 20020128277
    Abstract: Compounds which function as modulators, particularly, openers, of human KCNQ potassium channel proteins or polypeptides, particularly, central nervous system (CNS)-located KCNQ potassium channels, and heteromultimers thereof, and their use in the treatment of migraine are provided by the present invention. One novel type of potassium channel polypeptide openers provided by the present invention is the fluorooxindole compounds, described for the first time as therapeutics for the treatment of migraine by preventing the asynchronous firing of neurons. Other KCNQ potassium channel opener compounds that are also useful in the treatments of the invention include 2,4-disubstituted pyrimidine-5-carboxamide derivatives. One or more of the compounds according to the present invention may be utilized alone, in combination, or in conjunction with other treatment modalities for reducing, ameliorating and/or alleviating migraine or diseases similar to, or mechanistically related to, migraine, e.g., cluster headache.
    Type: Application
    Filed: February 14, 2002
    Publication date: September 12, 2002
    Inventors: Steven I. Dworetzky, Valentin K. Gribkoff, Gene G. Kinney, Piyasena Hewawasam
  • Publication number: 20020040000
    Abstract: An isolated polynucleotide encoding a novel potassium channel polypeptide, KCNQ5, that is expressed primarily in brain and skeletal muscle is described. The new polypeptide has been cloned and isolated from a human brain cDNA library and is a member the KCNQ family of potassium channels. The provided human KCNQ5 nucleic acid sequence and encoded polypeptide can be employed for diagnostic, screening and therapeutic uses.
    Type: Application
    Filed: May 24, 2001
    Publication date: April 4, 2002
    Inventors: Steven I. Dworetzky, Chandra S. Ramanathan, Joanne T. Trojnacki, Christopher G. Boissard, Valentin K. Gribkoff
  • Patent number: 5621007
    Abstract: Methods for the therapy of cystic fibrosis and multi-drug resistance in cancer chemotherapy by administering to a patient in need thereof 5-trifluoroethyl-1-(5-chloro-2-hydroxyphenyl)-1,3-dehydro-2H-benzimidazol- 2-one (NSOO4) or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: April 15, 1997
    Assignee: Bristol-Myers Squibb Company
    Inventors: Valentin K. Gribkoff, Steven I. Dworetzky, Davis L. Temple