Patents by Inventor Chi Tu

Chi Tu 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).

  • Patent number: 8153636
    Abstract: Methods of treating an SCD-mediated disease or condition in a mammal, preferably a human, are disclosed, wherein the methods comprise administering to a mammal in need thereof a compound of formula (I): wherein x, y, W, V, R1, R2, R3, R4, R5, R6, R7, R7a, R8, R8a, R9, R9a, R10 and R10a are defined herein. Pharmaceutical compositions comprising the compounds of formula (I) are also disclosed.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: April 10, 2012
    Assignee: Xenon Pharmaceuticals Inc.
    Inventors: Melwyn Abreo, Daniel F. Harvey, Heinz W. Gschwend, Wenbao Li, Chi Tu, Rajender Kamboj, Michael D. Winther, Vishnumurthy Kodumuru, Cindy J. Hudson, Mikhail A. Kondratenko, Shifeng Liu, Vandna Raina, Serguei Sviridov, Zaihui Zhang, Mehran Seid Bagherzadeh, Shaoyi Sun
  • Patent number: 8030488
    Abstract: Methods of treating an SCD-mediated disease or condition in a mammal, preferably a human, are disclosed, wherein the methods comprise administering to a mammal in need thereof a compound of formula (I): where G, J, L, M, x, y, W, V, R2, R3, R4, R5, R6, R7, R8, R8a, R9, R9a, R10, R10a, R11 and R11a are defined herein. Pharmaceutical compositions comprising the compounds of formula (I) are also disclosed.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: October 4, 2011
    Assignee: Xenon Pharmaceuticals Inc.
    Inventors: Serguei Sviridov, Vishnumurthy Kodumuru, Shifeng Liu, Melwyn Abreo, Michael D. Winther, Heinz W. Gschwend, Rajender Kamboj, Shaoyi Sun, Mark W. Holladay, Wenbao Li, Chi Tu
  • Patent number: 7943760
    Abstract: This invention is directed to a method of preventing or treating diseases or conditions associated with platelet aggregation. The method is also directed to a method of treating thrombosis or related disorders. The method comprises administering to a subject a pharmaceutical composition comprising an effective amount of a non-nucleotide compound, preferably a P2Y12 receptor antagonist compound, wherein said amount is effective to inhibit platelet aggregation. The compounds useful for this invention include compounds of general Formulae I and III-XII, or salts, hydrates, and solvates thereof. The present invention also provides novel compounds of Formulae I and III-XII.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: May 17, 2011
    Assignee: Inspire Pharmaceuticals, Inc.
    Inventors: Robert Plourde, Jr., Sammy R. Shaver, James G. Douglass, III, Paul S. Watson, José L. Boyer, Chi Tu, Melwyn A. Abreo, Lorenzo J. Alfaro-Lopez, Yangbo Feng, Daniel F. Harvey, Tatyana V. Khasonova
  • Patent number: 7919484
    Abstract: This invention is directed to the use of SCD-1 inhibitors of the formula (I): where x, y, V, W, G, J, L, M, R2, R3, R5, R5a, R6, R6a, R7, R7a, R8 and R8a are defined herein, in combination with other drug therapies to treat adverse weight gain.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: April 5, 2011
    Assignee: Xenon Pharmaceuticals Inc.
    Inventors: Rajender Kamboj, Michael D. Winther, Robert Fraser, Mikhail Chafeev, Sultan Chowdhury, Jian-Min Fu, Duanjie Hou, Shifeng Liu, Vandna Raina, Mehran Seid Bagherzadeh, Serguei Sviridov, Kashinath Sadalapure, Shaoyi Sun, Vishnumurthy Kodumuru, Nagasree Chakka, Zaihui Zhang, Melwyn Abreo, Mikhail A. Kondratenko, Daniel F. Harvey, Cindy J. Hudson, Wenbao Li, Chi Tu, Sengen Sun, Mark W. Holladay, Heinz W. Gschwend
  • Publication number: 20100197913
    Abstract: This invention is directed to a method of preventing or treating diseases or conditions associated with platelet aggregation. The method is also directed to a method of treating thrombosis or related disorders. The method comprises administering to a subject a pharmaceutical composition comprising an effective amount of a non-nucleotide compound, preferably a P2Y12 receptor antagonist compound, wherein said amount is effective to inhibit platelet aggregation. The compounds useful for this invention include compounds of general Formulae I and III-XII, or salts, hydrates, and solvates thereof. The present invention also provides novel compounds of Formulae I and III-XII.
    Type: Application
    Filed: September 2, 2009
    Publication date: August 5, 2010
    Inventors: Robert Plourde, JR., Sammy R. Shaver, James G. Douglass, III, Paul S. Watson, José L. Boyer, Chi Tu, Melwyn A. Abreo, Lorenzo J. Alfaro-Lopez, Yangbo Feng, Daniel F. Harvey, Tatyana V. Khasonova
  • Patent number: 7754711
    Abstract: Methods of treating an SCD-mediated disease or condition in a mammal, preferably a human, are disclosed, wherein the methods comprise administering to a mammal in need thereof a compound of formula (Ia): where x, y, W, V, R2, R3, R4, R5, R6, R6a, R7, R7a, R8, R8a, R9 and R9a are defined herein. Pharmaceutical compositions comprising the compounds of formula (I) are also disclosed.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: July 13, 2010
    Assignee: Xenon Pharmaceuticals Inc.
    Inventors: Nagasree Chakka, Mikhail Chafeev, Sultan Chowdhury, Jian-Min Fu, Duanjie Hou, Rajender Kamboj, Vishnumurthy Kodumuru, Shifeng Liu, Vandna Raina, Shaoyi Sun, Serguei Sviridov, Michael D. Winther, Zaihui Zhang, Melwyn Abreo, Mark W. Holladay, Wenbao Li, Sengen Sun, Chi Tu, Heinz W. Gschwend
  • Publication number: 20100048584
    Abstract: Methods of treating an SCD-mediated disease or condition in a mammal, preferably a human, are disclosed, wherein the methods comprise administering to a mammal in need thereof a compound of formula (I): wherein x, y, W, V, R1, R2, R3, R4, R5, R6, R7, R7a, R8, R8a, R9, R9a, R10 and R10a are defined herein. Pharmaceutical compositions comprising the compounds of formula (I) are also disclosed.
    Type: Application
    Filed: September 2, 2009
    Publication date: February 25, 2010
    Applicant: XENON PHARMACEUTICALS INC.
    Inventors: Melwyn Abreo, Daniel F. Harvey, Heinz W. Gschwend, Wenbao Li, Chi Tu, Rajender Kamboj, Michael D. Winther, Vishnumurthy Kodumuru, Cindy J. Hudson, Mikhail A. Kondratenko, Shifeng Liu, Vandna Raina, Serguei Sviridov, Zaihui Zhang, Mehran Seid Bagherzadeh, Shaoyi Sun
  • Patent number: 7605161
    Abstract: Methods of treating an SCD-mediated disease or condition in a mammal, preferably a human, are disclosed, wherein the methods comprise administering to a mammal in need thereof a compound of formula (I): wherein: W is —O—, —N(R1)—, C(O), S(O)t; (where t is 0, 1 or 2), N(R1)S(O)2, S(O)2N(R1), C(O)N(R1) or N(R1)C(O)N(R1); and V is C(O), C(S), C(O)N(R1)—, C(O)O—, S(O)2—, S(O)2N(R1)— or C(R11)H; and x, y, R1, R2, R3, R4, R5, R6, R7, R7a, R8, R8a, R9, R9a, R10 and R10a are defined herein. Pharmaceutical compositions comprising the compounds of formula (I) are also disclosed.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: October 20, 2009
    Assignee: Xenon Pharmaceuticals Inc.
    Inventors: Melwyn Abreo, Daniel F. Harvey, Heinz W. Gschwend, Wenbao Li, Chi Tu, Rajender Kamboj, Michael D. Winther, Vishnumurthy Kodumuru, Cindy J. Hudson, Mikhail A. Kondratenko, Shifeng Liu, Vandna Raina, Serguei Sviridov, Zaihui Zhang, Mehran Seid Bagherzadeh, Shaoyi Sun
  • Patent number: 7592445
    Abstract: This invention is directed to compounds of Formulae III and V, useful for treating diseases or conditions associated with platelet aggregation.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: September 22, 2009
    Assignee: Inspire Pharmaceuticals, Inc.
    Inventors: Robert Plourde, Jr., Sammy R. Shaver, James G. Douglass, III, Paul S. Watson, José L. Boyer, Chi Tu, Melwyn A. Abreo, Lorenzo J. Alfaro-Lopez, Yangbo Feng, Daniel F. Harvey, Tatyana V. Khasonova
  • Publication number: 20090131447
    Abstract: This invention is directed to the use of SCD-1 inhibitors of the formula (I): where x, y, V, W, G, J, L, M, R2, R3, R5, R5a, R6, R6a, R7, R7a, R8 and R8a are defined herein, in combination with other drug therapies to treat adverse weight gain.
    Type: Application
    Filed: February 8, 2006
    Publication date: May 21, 2009
    Applicant: XENON PHARMACEUTICALS INC.
    Inventors: Rajender Kamboj, Michael D. Winther, Robert Fraser, Mikhail Chafeev, Sultan Chowdhury, Jian-Min Fu, Duanjie Hou, Shifeng Liu, Vandna Raina, Mehran Seid Bagherzadeh, Serguei Sviridov, Kashinath Sadalapure, Shaoyi Sun, Vishnumurthy Kodumuru, Nagasree Chakka, Zaihui Zhang, Melwyn Abreo, Mikhail A. Kondratenko, Daniel F. Harvey, Cindy J. Hudson, Wenbao Li, Chi Tu, Sengen Sun, Mark W. Holladay, Heinz W. Gschwend
  • Publication number: 20090030008
    Abstract: Methods of treating an SCD-mediated disease or condition in a mammal, preferably a human, are disclosed, wherein the methods comprise administering to a mammal in need thereof a compound of formula (I): where G, J, L, M, x, y, W, V, R2, R3, R4, R5, R6, R7, R8, R8a, R9, R9a, R10, R10a, R11 and R11a are defined herein. Pharmaceutical compositions comprising the compounds of formula (I) are also disclosed.
    Type: Application
    Filed: October 8, 2008
    Publication date: January 29, 2009
    Applicant: XENON PHARMACEUTICALS INC.
    Inventors: Serguei Sviridov, Vishnumurthy Kodumuru, Shifeng Liu, Melwyn Abreo, Michael D. Winther, Heinz W. Gschwend, Rajender Kamboj, Shaoyi Sun, Mark W. Holladay, Wenbao Li, Chi Tu
  • Patent number: 7456180
    Abstract: Methods of treating an SCD-mediated disease or condition in a mammal, preferably a human, are disclosed, wherein the methods comprise administering to a mammal in need thereof a compound of formula (I): where G, J, L, M, x, y, W, V, R2, R3, R4, R5, R6, R7, R8, R8a, R9, R9a, R10, R10a, R11 and R11a are defined herein. Pharmaceutical compositions comprising the compounds of formula (I) are also disclosed.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: November 25, 2008
    Assignee: Xenon Pharmaceuticals Inc.
    Inventors: Serguei Sviridov, Vishnumurthy Kodumuru, Shifeng Liu, Melwyn Abreo, Michael D. Winther, Heinz W. Gschwend, Rajender Kamboj, Shaoyi Sun, Mark W. Holladay, Wenbao Li, Chi Tu
  • Patent number: 7368438
    Abstract: This invention is directed to a method of preventing or treating diseases or conditions associated with platelet aggregation. The method is also directed to a method of treating thrombosis or related disorders. The method comprises administering to a subject a pharmaceutical composition comprising an effective amount of a non-nucleotide compound, preferably a P2Y12 receptor antagonist compound, wherein said amount is effective to inhibit platelet aggregation. The compounds useful for this invention include compounds of general Formula I and III-XI, or salts, hydrates, and solvates thereof. The present invention also provides novel compounds according to Formula I and III-XI.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: May 6, 2008
    Assignee: Inspire Pharmaceuticals, Inc.
    Inventors: Robert Plourde, Jr., Sammy R. Shaver, José L. Boyer, Melwyn A. Abreo, Lorenzo J. Alfaro-Lopez, Yangbo Feng, Daniel F. Harvey, Tatyana V. Khasonova, Chi Tu
  • Publication number: 20080103304
    Abstract: This invention is directed to a method of preventing or treating diseases or conditions associated with platelet aggregation. The method is also directed to a method of treating thrombosis or related disorders. The method comprises administering to a subject a pharmaceutical composition comprising an effective amount of a non-nucleotide compound, preferably a P2Y12 receptor antagonist compound, wherein said amount is effective to inhibit platelet aggregation. The compounds useful for this invention include compounds of general Formulae I and III-XII, or salts, hydrates, and solvates thereof. The present invention also provides novel compounds of Formulae I and III-XII.
    Type: Application
    Filed: January 4, 2008
    Publication date: May 1, 2008
    Inventors: Robert Plourde, Sammy Shaver, James Douglass, Paul Watson, Jose Boyer, Chi Tu, Melwyn Abreo, Lorenzo Alfaro-Lopez, Yangbo Feng, Daniel Harvey, Tatyana Khasonova
  • Patent number: 7335658
    Abstract: Methods of treating an SCD-mediated disease or condition in a mammal, preferably a human, are disclosed, wherein the methods comprise administering to a mammal in need thereof a compound of formula (I): where x, y, W, V, R2, R3, R4, R5, R6, R6a, R7, R7a, R8, R8a, R9 and R9a are defined herein. Pharmaceutical compositions comprising the compounds of formula (I) are also disclosed.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: February 26, 2008
    Assignee: Xenon Pharmaceuticals Inc.
    Inventors: Nagasree Chakka, Mikhail Chafeev, Sultan Chowdhury, Jian-Min Fu, Duanjie Hou, Rajender Kamboj, Vishnumurthy Kodumuru, Shifeng Liu, Vandna Raina, Shaoyi Sun, Serguei Sviridov, Michael D Winther, Zaihui Zhang, Melwyn Abreo, Mark W Holladay, Wenbao Li, Sengen Sun, Chi Tu, Heinz W Gschwend
  • Patent number: 7335648
    Abstract: This invention is directed to a method of preventing or treating diseases or conditions associated with platelet aggregation. The method is also directed to a method of treating thrombosis or related disorders. The method comprises administering to a compounds useful for this invention include compounds of general Formulae I and III-XII, or salts, hydrates, and solvates thereof. The present invention also provides novel compounds of Formulae I and III-XII.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: February 26, 2008
    Assignee: Inspire Pharmaceuticals, Inc.
    Inventors: Robert Plourde, Jr., Sammy R. Shaver, James G. Douglass, III, Paul S. Watson, José L. Boyer, Chi Tu, Melwyn A. Abreo, Lorenzo J. Alfaro-Lopez, Yangbo Feng, Daniel F. Harvey, Tatyana V. Khasonova
  • Publication number: 20060252767
    Abstract: Methods of treating an SCD-mediated disease or condition in a mammal, preferably a human, are disclosed, wherein the methods comprise administering to a mammal in need thereof a compound of formula (I): where G, J, L, M, x, y, W, V, R2, R3, R4, R5, R6, R7, R8, R8a, R9, R9a, R10, R10a, R11 and R11a are defined herein. Pharmaceutical compositions comprising the compounds of formula (I) are also disclosed.
    Type: Application
    Filed: July 29, 2004
    Publication date: November 9, 2006
    Applicant: XENON PHARMACEUTICALS INC.
    Inventors: Serguei Sviridov, Vishnumurthy Kodumuru, Shifeng Liu, Melwyn Abreo, Michael Winther, Heins Gschwend, Rajender Kamboj, Shaoyi Sun, Mark Holladay, Wenbao Li, Chi Tu
  • Publication number: 20060199802
    Abstract: Methods of treating an SCD-mediated disease or condition in a mammal, preferably a human, are disclosed, wherein the methods comprise administering to a mammal in need thereof a compound of formula (1): wherein: W is —O—, —N(R1)—, C(O), S(O)t ; (where t is 0, 1 or 2), N(R1)S(O)2, S(O)2N(R1) , C(O)N(R1) or N(R1)C(O)N(R1); and V is C(O), C(S), C(O)N(R1)—, C(O)O—, S(O)2—, S(O)2N(R1)— or C(R1)H; and x, y, R1, R2, R3, R4, R5, R6, R7, R7a, R8, R8a, R9, R9a, R10 and R10a are defined herein. Pharmaceutical compositions comprising the compounds of formula (I) are also disclosed.
    Type: Application
    Filed: July 29, 2004
    Publication date: September 7, 2006
    Inventors: Melwyn Abreo, Daniel Harvey, Heins Gschwend, Wenbao Li, Chi Tu, Rajender Kamboj, Michael Winther, Vishnumurthy Kodumuru, Cindy Hudson, Mikhail Kondratenko, Shifeng Liu, Vandna Raina, Serguei Sviridov, Zaihui Zhang, Mehran Seid Bagherzadeh, Shaoyi Sun
  • Publication number: 20060009459
    Abstract: Methods of treating an SCD-mediated disease or condition in a mammal, preferably a human, are disclosed, wherein the methods comprise administering to a mammal in need thereof a compound of formula (Ia): where x, y, W, V, R2, R3, R4, R5, R6, R6a, R7, R7a, R8, R8a, R9 and R9a are defined herein. Pharmaceutical compositions comprising the compounds of formula (I) are also disclosed.
    Type: Application
    Filed: February 9, 2005
    Publication date: January 12, 2006
    Inventors: Nagasree Chakka, Mikhail Chafeev, Sultan Chowdhury, Jian-Min Fu, Duanjie Hou, Rajender Kamboj, Vishnumurthy Kodumuru, Shifeng Liu, Vandna Raina, Shaoyi Sun, Serguei Sviridov, Michael Winther, Zaihui Zhang, Melwyn Abreo, Mark Holladay, Wenbao Li, Sengen Sun, Chi Tu, Heinz Gschwend
  • Publication number: 20050267134
    Abstract: This invention is directed to a method of preventing or treating diseases or conditions associated with platelet aggregation. The method is also directed to a method of treating thrombosis or related disorders. The method comprises administering to a subject a pharmaceutical composition comprising an effective amount of a non-nucleotide compound, preferably a P2Y12 receptor antagonist compound, wherein said amount is effective to inhibit platelet aggregation, preferably in a reversible manner. The compounds useful for this invention include compounds of general Formulae I and III-XII, or salts, hydrates, and solvates thereof. The present invention also provides novel compounds of Formulae I and III-XII.
    Type: Application
    Filed: May 5, 2005
    Publication date: December 1, 2005
    Inventors: Robert Plourde,, Sammy Shaver, James Douglass,, Paul Watson, Jose Boyer, Chi Tu, Melwyn Abreo, Lorenzo Alfaro-Lopez, Yangbo Feng, Daniel Harvey, Tatyana Khasanova