Patents by Inventor Xiaohui Du

Xiaohui Du 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: 7799795
    Abstract: Provided herein are compounds of the formula where A1, A2, A3, A4, L, Q, R1, R2, R3, R4, Rx, Ry, Rz, X, Y1, Y2, Y4 and Z are as described herein, and compositions thereof that are useful in the treatment of inflammatory and immune conditions and diseases. In particular, the invention provides aryl nitrile compounds which modulate the expression and/or function of a chemokine receptor.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: September 21, 2010
    Assignee: Amgen Inc.
    Inventors: Philippe Bergeron, Xiaoqi Chen, Xiaohui Du, Jeffrey Deignan, Jason A. Duquette, Darin Gustin, Julio C. Medina, Jeffrey T. Mihalic, George R. Tonn
  • Patent number: 7629357
    Abstract: The present invention relates to compounds suitable for use in mediating hypoxia inducible factor and for treating erythropoietin-associated conditions by increasing endogenous erythropoietin in vitro and in vivo.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: December 8, 2009
    Assignee: FibroGen, Inc.
    Inventors: Michael P. Arend, Lee A. Flippin, Volkmar Guenzler-Pukall, Web-Bin Ho, Eric Turtle, Xiaohui Du
  • Publication number: 20090137561
    Abstract: The present invention provides compounds useful, for example, for treating metabolic disorders in a subject. Such compounds have the general formula I: where the definitions of the variables are provided herein. The present invention also provides compositions that include, and methods for using, the compounds in preparing medicaments and for treating metabolic disorders such as, for example, type II diabetes.
    Type: Application
    Filed: October 3, 2008
    Publication date: May 28, 2009
    Applicant: Amgen Inc.
    Inventors: Sean P. Brown, Qiong Cao, Paul John Dransfield, Xiaohui Du, Jonathan Houze, Xian Yun Jiao, Yong-Jae Kim, Todd J. Kohn, SuJen Lai, An-Rong Li, Daniel Lin, Jian Luo, Julio C. Medina, Jeffrey D. Reagan, Vatee Pattaropong, Margrit Schwarz, Wang Shen, Yongli Su, Gayathri Swaminath, Marc Vimolratana, Xiang Wang, Yumei Xiong, Li Yang, Ming Yu, Jie Zhang, Liusheng Zhu
  • Patent number: 7495023
    Abstract: The present invention relates to thio semicarbazone and semicarbazone inhibitors of cysteine proteases and methods of using such compounds to prevent and treat protozoan infections such as trypanosomiasis, malaria and leishmaniasis. The compounds also find use in inhibiting cysteine proteases associated with carcinogenesis, including cathepsins B and L.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: February 24, 2009
    Assignee: The Regents of the University of California
    Inventors: Fred E. Cohen, Xiaohui Du, Chun Guo, James H. McKerrow
  • Publication number: 20080293763
    Abstract: The present invention relates to compounds suitable for use in mediating hypoxia inducible factor and for treating erythropoietin-associated conditions by increasing endogenous erythropoietin in vitro and in vivo.
    Type: Application
    Filed: January 16, 2008
    Publication date: November 27, 2008
    Inventors: Michael P. Arend, Lee A. Flippin, Volkmar Guenzler-Pukall, Web-Bin Ho, Eric D. Turtle, Xiaohui Du
  • Patent number: 7375102
    Abstract: Compounds are provided having the formula: wherein variables A1, A2, A3, A4, R1, R2, R3, R4, Q and L are as described herein. The subject compounds are useful for treatment of inflammatory and immune conditions and diseases. Compositions and methods of treatment using the subject compounds are also provided. For example, the subject methods are useful for treatment of inflammatory and immune disorders and disease such as multiple sclerosis, rheumatoid arthritis, psoriasis, and inflammatory bowel disease.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: May 20, 2008
    Assignee: AMGEN SF, LLC
    Inventors: Zice Fu, Michael G. Johnson, An-Rong Li, Andrew P. Marcus, Julio C. Medina, Philippe Bergeron, Xiaoqi Chen, Xiaohui Du, Jeffrey Deignan, Jason A. Duquette, Darin Gustin, Jeffrey T. Mihalic, Jiwen Liu
  • Patent number: 7323475
    Abstract: The present invention relates to compounds suitable for use in mediating hypoxia inducible factor and for treating erythropoietin-associated conditions by increasing endogenous erythropoietin in vitro and in vivo.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: January 29, 2008
    Assignee: Fibrogen, Inc.
    Inventors: Michael P. Arend, Lee A. Flippin, Volkmar Guenzler-Pukall, Wen-Bin Ho, Eric Turtle, Xiaohui Du
  • Patent number: 7271271
    Abstract: Compounds are provided having the formula: wherein variables R0, R1, R2, R3, R4, Q, L and subscript n are as described herein. The subject compounds are useful for treatment of infammatory and immune conditions and diseases. Compositions and methods of treatment using the subject compounds are also provided. For example, the subject methods are useful for treatment of inflammatory and immune disorders and disease such as multiple sclerosis, rheumatoid arthritis, psoriasis, and inflammatory bowel disease.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: September 18, 2007
    Assignee: Amgen SF, LLC
    Inventors: Zice Fu, Michael G. Johnson, An-Rong Li, Andrew P. Marcus, Julio C. Medina, Philippe Bergeron, Xiaoqi Chen, Xiaohui Du, Jeffrey Deignan, Jason A. Duquette, Darin Gustin, Jeffrey T. Mihalic
  • Publication number: 20070185159
    Abstract: The present invention relates to compounds suitable for use in mediating hypoxia inducible factor and for treating erythropoietin-associated conditions by increasing endogenous erythropoietin in vitro and in vivo.
    Type: Application
    Filed: January 19, 2007
    Publication date: August 9, 2007
    Inventors: Michael AREND, Lee Flippin, Volkmar Guenzler-Pukall, Wen-Bin Ho, Eric Turtle, Xiaohui Du
  • Publication number: 20070155784
    Abstract: The present invention relates to compounds suitable for use in mediating hypoxia inducible factor and for treating erythropoietin-associated conditions by increasing endogenous erythropoietin in vitro and in vivo.
    Type: Application
    Filed: October 13, 2006
    Publication date: July 5, 2007
    Inventors: Michael Arend, Lee Flippin, Volkmar Guenzler-Pukall, Wen-Bin Ho, Eric Turtle, Xiaohui Du
  • Publication number: 20070015773
    Abstract: Compounds, compositions and methods that are useful in the treatment of inflammatory and immune conditions and diseases are provided herein. In particular, the invention provides aryl nitrile compounds which modulate the expression and/or function of a chemokine receptor. The subject methods are useful for the treatment of inflammatory and immunoregulatory disorders and diseases, such as multiple sclerosis, rheumatoid arthritis, type I diabetes, asthma, psoriasis and inflammatory bowel disease.
    Type: Application
    Filed: June 26, 2006
    Publication date: January 18, 2007
    Inventors: Philippe Bergeron, Xiaoqi Chen, Xiaohui Du, Jeffrey Deignan, Jason Duquette, Darin Gustin, Julio Medina, Jeffrey Mihalic, George Tonn
  • Publication number: 20070010231
    Abstract: A server and related method embodiments for determining usage on a wireless network are described. The server includes a connection detector, a connection classifier connected with the connection detector, and a usage tracker connected with the connection classifier. The connection detector detects a connection from a mobile station. The connection classifier determines the type of the detected connection. The usage tracker determines usage for each detected connection based on the connection type. A connecting mobile station for accessing the server includes a session controller for controlling a session with the server, a connection controller for controlling a connection related to the session, and an application assigner for controlling assignment of an application executed by the client to a particular connection.
    Type: Application
    Filed: July 6, 2005
    Publication date: January 11, 2007
    Inventor: Xiaohui Du
  • Publication number: 20060217416
    Abstract: The present invention relates to compounds suitable for use in mediating hypoxia inducible factor and for treating erythropoietin-associated conditions by increasing endogenous erythropoietin in vitro and in vivo.
    Type: Application
    Filed: May 26, 2006
    Publication date: September 28, 2006
    Inventors: Michael Arend, Lee Flippin, Volkmar Guenzler-Pukall, Wen-Bin Ho, Eric Turtle, Xiaohui Du
  • Publication number: 20060069106
    Abstract: Compounds are provided having the formula: wherein variables A1, A2, A3, A4, R1, R2, R3, R4, Q and L are as described herein. The subject compounds are useful for treatment of inflammatory and immune conditions and diseases. Compositions and methods of treatment using the subject compounds are also provided. For example, the subject methods are useful for treatment of inflammatory and immune disorders and disease such as multiple sclerosis, rheumatoid arthritis, psoriasis, and inflammatory bowel disease.
    Type: Application
    Filed: June 27, 2005
    Publication date: March 30, 2006
    Inventors: Zice Fu, Michael Johnson, An-Rong Li, Andrew Marcus, Julio Medina, Philippe Bergeron, Xiaoqi Chen, Xiaohui Du, Jeffrey Deignan, Jason Duquette, Darin Gustin, Jeffrey Mihalic
  • Publication number: 20060069099
    Abstract: Compounds are provided having the formula: wherein variables Ra, R1, R2, R3, R4, A1, A4, L, Q, X and subscript n as described herein. The subject compounds are useful for treatment of inflammatory and immune conditions and diseases. Compositions and methods of treatment using the subject compounds are also provided. For example, the subject methods are useful for treatment of inflammatory and immune disorders and disease such as multiple sclerosis, rheumatoid arthritis, psoriasis, and inflammatory bowel disease.
    Type: Application
    Filed: June 27, 2005
    Publication date: March 30, 2006
    Inventors: Zice Fu, Michael Johnson, An-Rong Li, Andrew Marcus, Julio Medina, Philippe Bergeron, Xiaoqi Chen, Xiaohui Du, Jeffrey Deignan, Jason Duquette, Darin Gustin, Jeffrey Mihalic
  • Publication number: 20060069127
    Abstract: Compounds are provided having the formula: wherein variables R0, R1, R2, R3, R4, Q, L and subscript n are as described herein. The subject compounds are useful for treatment of infammatory and immune conditions and diseases. Compositions and methods of treatment using the subject compounds are also provided. For example, the subject methods are useful for treatment of inflammatory and immune disorders and disease such as multiple sclerosis, rheumatoid arthritis, psoriasis, and inflammatory bowel disease.
    Type: Application
    Filed: June 27, 2005
    Publication date: March 30, 2006
    Inventors: Zice Fu, Michael Johnson, An-Rong Li, Andrew Marcus, Julio Medina, Philippe Bergeron, Xiaoqi Chen, Xiaohui Du, Jeffrey Deignan, Jason Duquette, Darin Gustin, Jeffrey Mihalic
  • Publication number: 20050182121
    Abstract: The present invention relates to thio semicarbazone and semicarbazone inhibitors of cysteine proteases and methods of using such compounds to prevent and treat protozoan infections such as trypanosomiasis, malaria and leishmaniasis. The compounds also find use in inhibiting cysteine proteases associated with carcinogenesis, including cathepsins B and L.
    Type: Application
    Filed: March 18, 2005
    Publication date: August 18, 2005
    Applicant: The Regents of the University of California
    Inventors: Fred Cohen, Xiaohui Du, Chun Guo, James McKerrow
  • Patent number: 6897240
    Abstract: The present invention relates to thio semicarbazone and semicarbazone inhibitors of cysteine proteases and methods of using such compounds to prevent and treat protozoan infections such as trypanosomiasis, malaria and leishmaniasis. The compounds also find use in inhibiting cysteine proteases associated with carcinogenesis, including cathepsins B and L.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: May 24, 2005
    Assignee: The Regents of the University of California
    Inventors: Fred E. Cohen, Xiaohui Du, Chun Guo, James H. McKerrow
  • Publication number: 20040254215
    Abstract: The present invention relates to compounds suitable for use in mediating hypoxia inducible factor and for treating erythropoietin-associated conditions by increasing endogenous erythropoietin in vitro and in vivo.
    Type: Application
    Filed: June 4, 2004
    Publication date: December 16, 2004
    Applicant: FibroGen, Inc.
    Inventors: Michael P. Arend, Lee A. Flippin, Volkmar Guenzler-Pukall, Wen-Bin Ho, Eric D. Turtle, Xiaohui Du
  • Publication number: 20040014801
    Abstract: The present invention relates to thio semicarbazone and semicarbazone inhibitors of cysteine proteases and methods of using such compounds to prevent and treat protozoan infections such as trypanosomiasis, malaria and leishmaniasis. The compounds also find use in inhibiting cysteine proteases associated with carcinogenesis, including cathepsins B and L.
    Type: Application
    Filed: May 8, 2003
    Publication date: January 22, 2004
    Applicant: The Regents of the University of California
    Inventors: Fred E. Cohen, Xiaohui Du, Chun Guo, James H. McKerrow