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: 20080199888
    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: April 27, 2007
    Publication date: August 21, 2008
    Inventor: Chen W. Liaw
  • Patent number: 7410777
    Abstract: Disclosed herein are constitutively activated, non-endogenous versions of endogenous human G protein-coupled receptors comprising (a) the following amino acid sequence region (C-terminus to N-terminus orientation) and/or (b) the following nucleic acid sequence region (3? to 5? orientation) transversing the transmembrane-6 (TM6) and intracellular loop-3 (IC3) regions of the GPCR: (a) P1 AA15X and/or (b) pcodon (AA-codon)15 Xcodon, respectively. In a most preferred embodiment, P1 and Pcodon are endogenous proline and an endogenous nucleic acid encoding region encoding proline, respectively, located within TM6 of the non-endogenous GPCR; AA15 and (AA-codon)15 are 15 endogenous amino acid residues and 15 codons encoding endogenous amino acid residues, respectively; and X and Xcodon are non-endogenous lysine and a non-endogenous nucleic acid encoding region encoding lysine, respectively, located within IC3 of the non-endogenous GPCR.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: August 12, 2008
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Chen W. Liaw, Dominic P. Behan, Derek T. Chalmers
  • Patent number: 7381522
    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 known (“known GPCRs”), and most particularly to mutated (non-endogenous) versions of the known GPCRs for use, most preferably in screening assays for the direct identification of candidate compounds as inverse agonists, agonists and partial agonists.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: June 3, 2008
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Karin Lehmann-Bruinsma, Chen W. Liaw, I-Lin Lin
  • Patent number: 7368539
    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: November 2, 2004
    Date of Patent: May 6, 2008
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Dominic P. Behan, Derek T. Chalmers, Chen W. Liaw, Joseph F. Russo, William J. Thomsen
  • Patent number: 7119190
    Abstract: The invention disclosed in this patent document relates to transmembrane receptors, more particularly to a human G protein-coupled receptor and to mutated (non-endogenous) versions of the human GPCRs for evidence of constitutive activity.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: October 10, 2006
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Chen W. Liaw, Derek T. Chalmers, Dominic P. Behan, Dominique Maciejewski-Lenior, James N. Leonard, I-Lin Lin, Daniel Ortuño
  • Patent number: 7097969
    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 known (“known GPCRs”), and most particularly to mutated (non-endogenous) versions of the known GPCRs for use, most preferably in screening assays for the direct identification of candidate compounds as inverse agonists, agonists and partial agonists.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: August 29, 2006
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Karin Lehmann-Bruinsma, Chen W. Liaw, I-Lin Lin
  • Patent number: 6846919
    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: June 19, 2002
    Date of Patent: January 25, 2005
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Dominic P Behan, Derek T Chalmers, Chen W Liaw, Joseph F Russo, William J Thomsen
  • Patent number: 6806054
    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 known (“known GPCRs”), and most particularly to mutated (non-endogenous) versions of the known GPCRs for use, most preferably in screening assays for the direct identification of candidate compounds as inverse agonists, agonists and partial agonists.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: October 19, 2004
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Karin Lehmann-Bruinsma, Chen W. Liaw, I-Lin Lin
  • Publication number: 20040147429
    Abstract: Disclosed herein are techniques for directly identifying candidate compounds as agonists, partial agonists and/or, most preferably, inverse agonists, to endogenous, constitutively activated orphan G protein-coupled receptors. Such directly identified compounds can be utilized, most preferably, in pharmaceutical compositions.
    Type: Application
    Filed: September 22, 2003
    Publication date: July 29, 2004
    Applicant: Arena Pharmaceuticals, Inc.
    Inventors: Dominic P. Behan, Derek T. Chalmers, Chen W. Liaw, I-Lin Lin, Kevin P. Lowitz, Ruoping Chen
  • Publication number: 20040137509
    Abstract: The invention disclosed in this patent document relates to transmembrane receptors, more particularly to endogenous, human orphan G protein-coupled receptors. The invention provides, in part, polynucleotides encoding the endogenous, human orphan G protein-coupled receptors.
    Type: Application
    Filed: February 19, 2004
    Publication date: July 15, 2004
    Inventors: Chen W. Liaw, I-Lin Lin
  • Publication number: 20040110238
    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: Application
    Filed: November 26, 2003
    Publication date: June 10, 2004
    Inventors: Ruoping Chen, Chen W. Liaw, Kevin Lowitz, Derek T. Chalmers, Dominic P. Behan
  • Publication number: 20030229216
    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: Application
    Filed: April 16, 2003
    Publication date: December 11, 2003
    Inventors: Ruoping Chen, Chen W. Liaw, Kevin Lowitz, Derek T. Chalmers, Dominic P. Behan
  • Publication number: 20030224442
    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: January 23, 2002
    Publication date: December 4, 2003
    Inventors: Dominic P. Behan, Derek T. Chalmers, Chen W. Liaw, Joseph F. Russo, William J. Thomsen
  • Patent number: 6653086
    Abstract: Disclosed herein are techniques for directly identifying candidate compounds as agonists, partial agonists and/or, most preferably, inverse agonists, to endogenous, constitutively activated orphan G protein-coupled receptors.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: November 25, 2003
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Dominic P. Behan, Derek T. Chalmers, Chen W. Liaw, I Lin-Lin, Kevin P. Lowitz, Ruoping Chen
  • Publication number: 20030204073
    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 known (“known GPCRs”), and most particularly to mutated (non-endogenous) versions of the known GPCRs for use, most preferably in screening assays for the direct identification of candidate compounds as inverse agonists, agonists and partial agonists.
    Type: Application
    Filed: April 5, 2001
    Publication date: October 30, 2003
    Applicant: Arena Pharmaceuticals, Inc.
    Inventors: Karin Lehmann-Bruinsma, Chen W. Liaw, I-Lin Lin
  • Publication number: 20030175889
    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: January 22, 2003
    Publication date: September 18, 2003
    Applicant: Arena Pharmaceuticals, Inc.
    Inventor: Chen W. Liaw
  • Publication number: 20030175891
    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: March 21, 2003
    Publication date: September 18, 2003
    Inventors: Ruoping Chen, Huong T. Dang, Chen W. Liaw, I-Lin Lin
  • Publication number: 20030153004
    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: June 19, 2002
    Publication date: August 14, 2003
    Inventors: Dominic P. Behan, Derek T. Chalmers, Chen W. Liaw, Joseph F. Russo, William J. Thomsen
  • Publication number: 20030148450
    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: October 17, 2002
    Publication date: August 7, 2003
    Inventors: Ruoping Chen, Huong T. Dang, Chen W. Liaw, I-Lin Lin
  • Publication number: 20030105292
    Abstract: Disclosed herein are constitutively activated, non-endogenous versions of endogenous human G protein-coupled receptors comprising (a) the following amino acid sequence region (C-terminus to N-terminus orientation) and/or (b) the following nucleic acid sequence region (3′ to 5′ orientation) transversing the transmembrane-6 (TM6) and intracellular loop-3 (IC3) regions of the GPCR:
    Type: Application
    Filed: September 20, 2002
    Publication date: June 5, 2003
    Inventors: Chen W. Liaw, Dominic P. Behan, Derek T. Chalmers