Patents by Inventor Kap-Sun Yeung

Kap-Sun Yeung 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).

  • Compounds for the treatment of hepatitis C
    Patent number: 8293909
    Abstract: The disclosure provides compounds of formula I, II, III, IV, and V, including their salts, as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and may be useful in treating those infected with HCV.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: October 23, 2012
    Assignee: Bristol-Myers Squibb Company
    Inventors: Richard Pracitto, John F. Kadow, John A. Bender, Brett R. Beno, Katharine A. Grant-Young, Ying Han, Piyasena Hewawasam, Andrew Nickel, Kyle E. Parcella, Kap-Sun Yeung, Louis S. Chupak
  • SALTS OF PRODRUGS OF PIPERAZINE AND SUBSTITUTED PIPERIDINE ANTIVIRAL AGENTS
    Publication number: 20120238755
    Abstract: This invention provides for prodrug Compounds I, pharmaceutical compositions thereof, and their use in treating HIV infection. wherein: X is C or N with the proviso that when X is N, R1 does not exist; W is C or N with the proviso that when W is N, R2 does not exist; V is C; E is hydrogen or a pharmaceutically acceptable salt thereof; and Y is selected from the group consisting of Also, this invention provides for intermediate Compounds II useful in making prodrug Compounds I. wherein: L and M are independently selected from the group consisting of C1-C6 alkyl, phenyl, benzyl, trialkylsilyl, -2,2,2-trichloroethoxy and 2-trimethylsilylethoxy.
    Type: Application
    Filed: March 26, 2012
    Publication date: September 20, 2012
    Inventors: YASUTSUGU UEDA, Timothy P. Connolly, John F. Kadow, Nicholas A. Meanwell, Tao Wang, Chung-Pin H. Chen, Kap-Sun Yeung, Zhongxing Zhang, David Kenneth Leahy, Shawn K. Pack, Nachimuthu Soundararajan, Pierre Sirard, Kathia Levesque, Dominique Thoraval
  • Compounds for the Treatment of Hepatitis C
    Publication number: 20120232099
    Abstract: The disclosure provides compounds of formula I, II, III, IV, and V, including their salts, as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and may be useful in treating those infected with HCV.
    Type: Application
    Filed: May 14, 2012
    Publication date: September 13, 2012
    Inventors: Richard Pracitto, John F. Kadow, John A. Bender, Brett R. Beno, Katherine A. Grant-Young, Ying Han, Piyasena Hewawasam, Andrew Nickel, Kyle E. Parcella, Kap-Sun Yeung, Louis S. Chupak
  • COMPOUNDS FOR THE TREATMENT OF HEPATITIS C
    Publication number: 20120201783
    Abstract: The disclosure provides compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and may be useful in treating those infected with HCV.
    Type: Application
    Filed: February 13, 2012
    Publication date: August 9, 2012
    Inventors: Kap-Sun Yeung, Kyle E. Parcella, John A. Bender, Brett R. Beno, Katharine A. Grant-Young, Ying Han, Piyasena Hewawasam, John F. Kadow, Andrew Nickel
  • Compounds for the Treatment of Hepatitis C
    Publication number: 20120165344
    Abstract: The disclosure provides compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and may be useful in treating those infected with HCV.
    Type: Application
    Filed: June 23, 2011
    Publication date: June 28, 2012
    Inventors: Kap-Sun Yeung, Brett R. Beno, John F. Kadow
  • Compounds for the treatment of hepatitis C
    Patent number: 8198449
    Abstract: The disclosure provides compounds of formula I, II, III, IV, and V, including their salts, as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and may be useful in treating those infected with HCV.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: June 12, 2012
    Assignee: Bristol-Myers Squibb Company
    Inventors: Richard Pracitto, John F. Kadow, John A. Bender, Brett R. Beno, Katharine A. Grant-Young, Ying Han, Piyasena Hewawasam, Andrew Nickel, Kyle E. Parcella, Kap-Sun Yeung, Louis S. Chupak
  • Compounds for the treatment of hepatitis C
    Patent number: 8178523
    Abstract: The disclosure provides compounds of formula (I), including their salts, as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and may be useful in treating those infected with HCV.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: May 15, 2012
    Assignee: Bristol-Myers Squibb Company
    Inventors: Kap-Sun Yeung, Ying Han, John F. Kadow
  • Prodrugs of piperazine and substituted piperidine antiviral agents
    Patent number: 8168615
    Abstract: This invention provides for prodrug Compounds I, pharmaceutical compositions thereof, and their use in treating HIV infection. wherein: X is C or N with the proviso that when X is N, R1 does not exist; W is C or N with the proviso that when W is N, R2 does not exist; V is C; E is hydrogen or a pharmaceutically acceptable salt thereof; and Y is selected from the group consisting of Also, this invention provides for intermediate Compounds II useful in making prodrug Compounds I. wherein: L and M are independently selected from the group consisting of C1-C6 alkyl, phenyl, benzyl, trialkylsilyl, -2,2,2-trichloroethoxy and 2-trimethylsilylethoxy.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: May 1, 2012
    Assignee: Bristol-Myers Squibb Company
    Inventors: Yasutsugu Ueda, Timothy P. Connolly, John F. Kadow, Nicholas A. Meanwell, Tao Wang, Chung-Pin H. Chen, Kap-Sun Yeung, Zhongxing Zhang, David Kenneth Leahy, Shawn K. Pack, Nachimuthu Soundararajan, Pierre Sirard, Kathia Levesque, Dominique Thoraval
  • Compounds for the treatment of hepatitis C
    Patent number: 8148382
    Abstract: The disclosure provides compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and may be useful in treating those infected with HCV.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: April 3, 2012
    Assignee: Bristol-Myers Squibb Company
    Inventors: Kap-Sun Yeung, Kyle E. Parcella, John A. Bender, Brett R. Beno, Katharine A. Grant-Young, Ying Han, Piyasena Hewawasam, John F. Kadow, Andrew Nickel
  • Compounds for the treatment of hepatitis C
    Patent number: 8143243
    Abstract: The invention encompasses compounds of formula I as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and are useful in treating those infected with HCV.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: March 27, 2012
    Assignee: Bristol-Myers Squibb Company
    Inventors: Scott W. Martin, Carl P. Bergstrom, Robert G. Gentles, Kap-Sun Yeung
  • Compounds for the Treatment of Hepatitis C
    Publication number: 20120059019
    Abstract: The disclosure provides compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and may be useful in treating those infected with HCV.
    Type: Application
    Filed: March 9, 2011
    Publication date: March 8, 2012
    Inventors: Kap-Sun Yeung, Katharine A. Grant-Young, John F. Kadow
  • HYDROXYPHENYL SULFONAMIDES AS ANTIAPOPTOTIC BCL INHIBITORS
    Publication number: 20110294793
    Abstract: The present invention provides compound of Formula (I): or a stereoisomer, tautomer, salt or solvate thereof, wherein the variables are defined herein. The compounds of formula (I) are inhibitors of Bcl-2 family antiapoptotic proteins, compositions containing the compounds and methods of treating diseases using the compounds.
    Type: Application
    Filed: June 8, 2009
    Publication date: December 1, 2011
    Inventors: kyoung S Kim, Robert M. Borzilleri, Zhen-Wei Cai, Kap-Sun Yeung
  • Compounds for the treatment of hepatitis C
    Patent number: 8048887
    Abstract: The disclosure provides compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and may be useful in treating those infected with HCV.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: November 1, 2011
    Assignee: Bristol-Myers Squibb Company
    Inventors: Kap-Sun Yeung, Kyle E. Parcella, John A. Bender, Brett R. Beno, Katharine A. Grant-Young, Ying Han, Piyasena Hewawasam, John F. Kadow, Andrew Nickel
  • Compounds for the Treatment of Hepatitis C
    Publication number: 20110256099
    Abstract: The disclosure provides compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and may be useful in treating those infected with HCV.
    Type: Application
    Filed: June 23, 2011
    Publication date: October 20, 2011
    Inventors: Kap-Sun Yeung, Kyle E. Parcella, John A. Bender, Brett R. Beno, Katharine A. Grant-Young, Ying Han, Piyasena Hewawasam, John F. Kadow, Andrew Nickel
  • Indole, azaindole and related heterocyclic N-substituted piperazine derivatives
    Patent number: 8039486
    Abstract: This invention provides compounds of Formula I, including pharmaceutically acceptable salts thereof, having drug and bio-affecting properties, their pharmaceutical compositions and method of use. These compounds possess unique antiviral activity, whether used alone or in combination with other antivirals, antiinfectives, immunomodulators or HIV entry inhibitors. More particularly, the present invention relates to the treatment of HIV and AIDS.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: October 18, 2011
    Assignee: Bristol-Myers Squibb Company
    Inventors: Kap-Sun Yeung, Michelle E. Farkas, John F. Kadow, Nicholas A. Meanwell, Malcolm Taylor, David Johnston, Thomas Stephen Coulter, J. J. Kim Wright
  • HCV NS5B inhibitors
    Patent number: 7998951
    Abstract: The invention encompasses compounds of Formula I as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and are useful in treating those infected with HCV.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: August 16, 2011
    Assignee: Bristol-Myers Squibb Company
    Inventors: Kap-Sun Yeung, John F. Kadow
  • Compounds for the treatment of hepatitis C
    Patent number: 7994171
    Abstract: The disclosure provides compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and may be useful in treating those infected with HCV.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: August 9, 2011
    Assignee: Bristol-Myers Squibb Company
    Inventors: Kap-Sun Yeung, Kyle E. Parcella, John A. Bender, Brett R. Beno, Katharine A. Grant-Young, Ying Han, Piyasena Hewawasam, John F. Kadow, Andrew Nickel
  • Indole, azaindole and related heterocyclic 4-alkenyl piperidine amides
    Patent number: 7915283
    Abstract: This invention provides compounds having drug and bio-affecting properties, their pharmaceutical compositions and method of use. In particular, the invention is concerned with new piperidine 4-alkenyl derivatives that possess unique antiviral activity. More particularly, the present invention relates to compounds useful for the treatment of HIV and AIDS.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: March 29, 2011
    Assignee: Bristol-Myers Squibb Company
    Inventors: Tao Wang, John F. Kadow, Nicholas A. Meanwell, Kap-Sun Yeung, Zhongxing Zhang, Zhiwei Yin, Zhilei Qui, Daniel H. Deon, Clint A. James, Edward H. Ruediger, Carol Bachand
  • Compounds for the Treatment of Hepatitis C
    Publication number: 20110020275
    Abstract: The disclosure provides compounds of formula (I), including their salts, as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and may be useful in treating those infected with HCV.
    Type: Application
    Filed: March 25, 2009
    Publication date: January 27, 2011
    Inventors: Kap-Sun Yeung, Ying Han, John F. Kadow
  • Compounds for the Treatment of Hepatitis C
    Publication number: 20100249094
    Abstract: The disclosure provides compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and may be useful in treating those infected with HCV.
    Type: Application
    Filed: March 10, 2010
    Publication date: September 30, 2010
    Inventors: Kap-Sun Yeung, Kyle E. Parcella, John A. Bender, Brett R. Beno, Katharine A. Grant-Young, Ying Han, Piyasena Hewawasam, John F. Kadow, Andrew Nickel