Patents by Inventor Chen W Liaw

Chen W Liaw 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: 20160077113
    Abstract: The present invention relates to methods of using a G protein-coupled receptor (GPCR) to screen one or more candidate compounds as a modulator of body mass or of adiposity or of percentage body fat in a subject or as a pharmaceutical agent for obesity and conditions related thereto. Inverse agonists and antagonists of the invention are useful as therapeutic agents for the prevention or treatment of obesity and conditions related thereto, including hypertension, insulin resistance, metabolic syndrome, Type 2 diabetes, dyslipidemia, atherosclerosis, coronary heart disease, and stroke. Agonists and partial agonists of the invention are useful as therapeutic agents for the prevention or treatment of disorders ameliorated by increasing body mass including, but not limited to, cachexia.
    Type: Application
    Filed: May 21, 2015
    Publication date: March 17, 2016
    Inventors: Didier Bagnol, CHEN W. LIAW
  • Patent number: 9068983
    Abstract: The present invention relates to methods of using a G protein-coupled receptor (GPCR) to screen one or more candidate compounds as a modulator of body mass or of adiposity or of percentage body fat in a subject or as a pharmaceutical agent for obesity and conditions related thereto. Inverse agonists and antagonists of the invention are useful as therapeutic agents for the prevention or treatment of obesity and conditions related thereto, including hypertension, insulin resistance, metabolic syndrome, Type 2 diabetes, dyslipidemia, atherosclerosis, coronary heart disease, and stroke. Agonists and partial agonists of the invention are useful as therapeutic agents for the prevention or treatment of disorders ameliorated by increasing body mass including, but not limited to, cachexia.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: June 30, 2015
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Didier Bagnol, Chen W. Liaw
  • Publication number: 20140255310
    Abstract: The present invention relates to methods of using a G protein-coupled receptor (GPCR) to identify whether a candidate compound is a modulator of atherogenesis. In certain embodiments, the GPCR couples to Gi. In certain embodiments, the GPCR is human. Agonists of the invention are useful as therapeutic agents for the prevention or treatment of atherosclerosis and atherosclerotic disease, including coronary artery disease, myocardial infarction, peripheral arterial disease, and ischemic stroke. Agonists of the invention are additionally useful as therapeutic agents for the prevention or treatment of conditions related to MCP-1 expression, including but not limited to rheumatoid arthritis, Crohn's disease, and multiple sclerosis.
    Type: Application
    Filed: February 13, 2014
    Publication date: September 11, 2014
    Applicant: ARENA PHARMACEUTICALS, INC.
    Inventors: Yaron Hakak, David J. Unett, Joel Gatlin, Chen W. Liaw
  • Patent number: 8691498
    Abstract: The present invention relates to methods of using a G protein-coupled receptor (GPCR) to identify whether a candidate compound is a modulator of atherogenesis. In certain embodiments, the GPCR couples to Gi. In certain embodiments, the GPCR is human. Agonists of the invention are useful as therapeutic agents for the prevention or treatment of atherosclerosis and atherosclerotic disease, including coronary artery disease, myocardial infarction, peripheral arterial disease, and ischemic stroke. Agonists of the invention are additionally useful as therapeutic agents for the prevention or treatment of conditions related to MCP-1 expression, including but not limited to rheumatoid arthritis, Crohn's disease, and multiple sclerosis.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: April 8, 2014
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Yaron Hakak, David J. Unett, Joel Gatlin, Chen W. Liaw
  • Patent number: 8440391
    Abstract: The invention disclosed in this patent document relates to transmembrane receptors, more particularly to a human G protein-coupled receptor for which the endogenous ligand is unknown (“orphan GPCR receptors”), and most particularly to mutated (non-endogenous) versions of the human GPCRs for evidence of constitutive activity.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: May 14, 2013
    Assignee: Arena Phamaceuticals, Inc.
    Inventors: Ruoping Chen, Chen W. Liaw, Kevin P. Lowitz, Derek T. Chalmers, Dominic P. Behan
  • Publication number: 20120207680
    Abstract: The present invention relates to methods of using a G protein-coupled receptor (GPCR) to screen one or more candidate compounds as a modulator of body mass or of adiposity or of percentage body fat in a subject or as a pharmaceutical agent for obesity and conditions related thereto. Inverse agonists and antagonists of the invention are useful as therapeutic agents for the prevention or treatment of obesity and conditions related thereto, including hypertension, insulin resistance, metabolic syndrome, Type 2 diabetes, dyslipidemia, atherosclerosis, coronary heart disease, and stroke. Agonists and partial agonists of the invention are useful as therapeutic agents for the prevention or treatment of disorders ameliorated by increasing body mass including, but not limited to, cachexia.
    Type: Application
    Filed: July 1, 2011
    Publication date: August 16, 2012
    Inventors: Didier Bagnol, Chen W. Liaw
  • Patent number: 8198049
    Abstract: The invention disclosed in this patent document relates to transmembrane receptors, more particularly to endogenous, human orphan G protein-coupled receptors.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: June 12, 2012
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Ruoping Chen, Huong T. Dang, Chen W. Liaw, I-Lin Lin
  • Patent number: 7998685
    Abstract: The present invention relates to methods of using a G protein-coupled receptor (GPCR) to screen one or more candidate compounds as a modulator of body mass or of adiposity or of percentage body fat in a subject or as a pharmaceutical agent for obesity and conditions related thereto. Inverse agonists and antagonists of the invention are useful as therapeutic agents for the prevention or treatment of obesity and conditions related thereto, including hypertension, insulin resistance, metabolic syndrome, Type 2 diabetes, dyslipidemia, atherosclerosis, coronary heart disease, and stroke. Agonists and partial agonists of the invention are useful as therapeutic agents for the prevention or treatment of disorders ameliorated by increasing body mass including, but not limited to, cachexia.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: August 16, 2011
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Didier Bagnol, Chen W. Liaw
  • Publication number: 20110195431
    Abstract: The invention disclosed in this patent document relates to transmembrane receptors, more particularly to endogenous, human orphan G protein-coupled receptors.
    Type: Application
    Filed: December 2, 2010
    Publication date: August 11, 2011
    Applicant: Arena Pharmaceuticals, Inc.
    Inventors: Ruoping Chen, Huong T. Dang, Chen W. Liaw, I-Lin LIn
  • Patent number: 7893235
    Abstract: The invention disclosed in this patent document relates to transmembrane receptors, more particularly to endogenous, human orphan G protein-coupled receptors.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: February 22, 2011
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Ruoping Chen, Huong T. Dang, Chen W. Liaw, I-Lin Lin
  • Publication number: 20100331238
    Abstract: The present invention relates to methods of using a G protein-coupled receptor (GPCR) to identify whether a candidate compound is a modulator of atherogenesis. In certain embodiments, the GPCR couples to Gi. In certain embodiments, the GPCR is human. Agonists of the invention are useful as therapeutic agents for the prevention or treatment of atherosclerosis and atherosclerotic disease, including coronary artery disease, myocardial infarction, peripheral arterial disease, and ischemic stroke. Agonists of the invention are additionally useful as therapeutic agents for the prevention or treatment of conditions related to MCP-1 expression, including but not limited to rheumatoid arthritis, Crohn's disease, and multiple sclerosis.
    Type: Application
    Filed: August 29, 2006
    Publication date: December 30, 2010
    Inventors: Yaron Hakak, David J. Unett, Joel Gatlin, Chen W. Liaw
  • Publication number: 20100317046
    Abstract: The invention disclosed in this patent document relates to transmembrane receptors, particularly to a human G protein-coupled receptor, more particularly to a follicle stimulating hormone receptor (FSHR), and most particularly to mutated (non-endogenous) versions of the human FSHR for evidence of constitutive activity.
    Type: Application
    Filed: December 3, 2009
    Publication date: December 16, 2010
    Inventor: CHEN W. LIAW
  • Patent number: 7829298
    Abstract: The present invention relates to methods of identifying whether a candidate compound is a modulator of a G protein-coupled receptor (GPCR). In preferred embodiments, the GPCR is human. In other preferred embodiments, the GPCR is coupled to Gi and lowers the level of intracellular cAMP. In other preferred embodiments, the GPCR is expressed endogenously by adipocytes. In further preferred embodiments, the GPCR inhibits intracellular lipolysis. In other further preferred embodiments, the GPCR is a nicotinic acid receptor. The present invention also relates to methods of using a modulator of said GPCR. Preferred modulator is agonist. Agonists of the invention are useful as therapeutic agents for the prevention or treatment of metabolic-related disorders, including dyslipidemia, atherosclerosis, coronary heart disease, stroke, insulin resistance, and type 2 diabetes.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: November 9, 2010
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: David J. Unett, Ruoping Chen, Jeremy G. Richman, Daniel T. Connolly, Huong T. Dang, Bryan J. Choi, James N. Leonard, Yaron Hakak, Chen W. Liaw, Dominic P. Behan, Derek T. Chalmers, Michael R. Lerner, Kevin P. Lowitz
  • Patent number: 7754866
    Abstract: Disclosed herein are non-endogenous, constitutively activated forms of the human 5-HT2A and human 5-HT2C receptors and uses of such receptors to screen candidate compounds. Further disclosed herein are candidate compounds identified by the screening method which act at the 5HT2A receptors. Yet further disclosed is a new class of compounds which act at the 5HT2A receptors.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: July 13, 2010
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Dominic P. Behan, Derek T. Chalmers, Chen W. Liaw, Joseph F. Russo, William J. Thomsen
  • Publication number: 20090317332
    Abstract: The present invention relates to methods of using a G protein-coupled receptor (GPCR) to screen one or more candidate compounds as a modulator of body mass or of adiposity or of percentage body fat in a subject or as a pharmaceutical agent for obesity and conditions related thereto. Inverse agonists and antagonists of the invention are useful as therapeutic agents for the prevention or treatment of obesity and conditions related thereto, including hypertension, insulin resistance, metabolic syndrome, Type 2 diabetes, dyslipidemia, atherosclerosis, coronary heart disease, and stroke. Agonists and partial agonists of the invention are useful as therapeutic agents for the prevention or treatment of disorders ameliorated by increasing body mass including, but not limited to, cachexia.
    Type: Application
    Filed: November 8, 2006
    Publication date: December 24, 2009
    Inventors: Didier Bagnol, Chen W. Liaw
  • Publication number: 20090313708
    Abstract: Methods for generating an expression-enhanced GPR22 nucleic acid, as well as substituted GPR22 nucleic acids providing for enhanced expression of the encoded GPR22 polypeptide, are provided. In practicing the subject methods, a nucleic acid encoding a mammalian GPR22 receptor polypeptide (e.g., a wild-type nucleic acid) is expression-enhanced by identifying the various codons of the coding region for the GPR22 amino acid sequence and substituting nucleotides so as to enhance expression without changing the amino acid sequence of the encoded GPR22 polypeptide. Methods, compositions, and kits using the same for screening of modulators of GPR22 are also provided.
    Type: Application
    Filed: October 12, 2006
    Publication date: December 17, 2009
    Inventor: Chen W. Liaw
  • Publication number: 20090117559
    Abstract: The present invention relates generally to a GPR109A niacin receptor. The present invention relates more particularly to assessing a GPR109A polymorphism in an individual, wherein the GPR109A polymorphism is indicative of the subject's risk for an adverse reaction to the administration of a GPR109A receptor agonist, wherein the adverse reaction is associated with stimulation of MAP kinase activity by the GPR109A receptor agonist. More specifically, the present invention relates to assessing a GPR109A polymorphism in an individual and determining the level of risk for the subject for experiencing an adverse reaction, wherein the subject's GPR109A zygosity is predictive of the risk for a cutaneous flushing response that can be experienced following administration of a GPR109A receptor agonist.
    Type: Application
    Filed: August 9, 2006
    Publication date: May 7, 2009
    Inventors: Chen W. Liaw, Martha Kanemitsu-Parks, Jeremy G. Richman, Dominique Maciejewski-Lenoir, Daniel T. Connolly
  • Publication number: 20090076254
    Abstract: Disclosed herein are non-endogenous, constitutively activated forms of the human 5-HT2A and human 5-HT2C receptors and uses of such receptors to screen candidate compounds. Further disclosed herein are candidate compounds identified by the screening method which act at the 5HT2A receptors. Yet further disclosed is a new class of compounds which act at the 5HT2A receptors.
    Type: Application
    Filed: March 19, 2008
    Publication date: March 19, 2009
    Inventors: Dominic P. Behan, Derek T. Chalmers, Chen W. Liaw, Joseph F. Russo, William J. Thomsen
  • Patent number: 7427487
    Abstract: The invention disclosed in this patent document relates to transmembrane receptors, particularly to a human G protein-coupled receptor, more particularly to a CXC chemokine receptor subtype 3 (CXCR3), and most particularly to mutated (non-endogenous) version of the human CXCR3 for evidence of constitutive activity and uses thereof. In some embodiments the altered versions of CXCR3 are used, inter alia, for the direct identification of candidate compounds such as receptor agonists, inverse agonists, partial agonist or antagonist for use in, for example and not limitation, graft rejection; inflammatory skin disease; inflammatory bowel disease; allergic inflammation, allergic pulmonary inflammation, inflammatory demyelinating neuropathy, CNS inflammation; rheumatoid arthritis, bronchiolitis obliterans syndrome, periodontal disease and neurodegenerative disease.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: September 23, 2008
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Sonia Villegas, Chen W. Liaw
  • Publication number: 20080199889
    Abstract: The invention disclosed in this patent document relates to transmembrane receptors, more particularly to endogenous, human orphan G protein-coupled receptors.
    Type: Application
    Filed: August 20, 2007
    Publication date: August 21, 2008
    Inventors: Ruoping Chen, Huong T. Dang, Chen W. Liaw, I-Lin Lin