Patents by Inventor Huaqing Liu

Huaqing Liu 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: 20100004256
    Abstract: Heteroaryl-fused macrocyclic 2,4-diaminopyrimidine compounds of formula (I) wherein W, G1, G2, A1 and R1 are defined in the description, compositions comprising such compounds, methods for making the compounds, and methods of treating and preventing the progression of diseases, conditions, and disorders using such compounds and compositions are described herein.
    Type: Application
    Filed: May 5, 2009
    Publication date: January 7, 2010
    Applicant: Abbott Laboratories
    Inventors: Huaqing Liu, Irene Drizin, Marlon D. Cowart, Robert J. Altenbach
  • Publication number: 20090270364
    Abstract: The present application describes substituted pyrimidine compounds of formula (I) wherein X, A1, R1, R2, R3, R4, R5, R6, R7, R8, R9, p, q, r, v, and w are defined in the specification, compositions comprising such compounds, methods for making the compounds, and methods of treating and preventing the progression of diseases, conditions and disorders using such compounds and compositions.
    Type: Application
    Filed: April 27, 2009
    Publication date: October 29, 2009
    Applicant: ABBOTT LABORATORIES
    Inventors: Huaqing Liu, Irene Drizin, Marlon D. Cowart, Robert J. Altenbach
  • Publication number: 20090253678
    Abstract: Macrocyclic pyrimidine compounds, compositions comprising such compounds, methods for making the compounds, and methods of treating and preventing the progression of diseases, conditions, and disorders using such compounds and compositions are described herein.
    Type: Application
    Filed: March 27, 2009
    Publication date: October 8, 2009
    Applicant: ABBOTT LABORATORIES
    Inventors: Huaqing Liu, Irene Drizin, John R. Koenig, Marlon D. Cowart, Chen Zhao, Brian D. Wakefield, Lawrence A. Black, Robert J. Altenbach
  • Publication number: 20090233904
    Abstract: Macrocyclic spiro pyrimidine compounds, compositions comprising such compounds, methods for making the compounds, and methods of treating and preventing the progression of diseases, conditions, and disorders using such compounds and compositions are described herein.
    Type: Application
    Filed: March 10, 2009
    Publication date: September 17, 2009
    Applicant: ABBOTT LABORATORIES
    Inventors: Huaqing Liu, John R. Koenig, Marlon D. Cowart, Lawrence A. Black
  • Publication number: 20090227593
    Abstract: Compounds of formula (I) are useful in treating conditions or disorders prevented by or ameliorated by histamine-3 receptor ligands. Also disclosed are pharmaceutical compositions comprising the histamine-3 receptor ligands, methods for using such compounds and compositions, and a process for preparing compounds within the scope of formula (I).
    Type: Application
    Filed: May 21, 2009
    Publication date: September 10, 2009
    Applicant: Abbott Laboratories
    Inventors: Huaqing Liu, Arthur A. Hancock, Kathryn J. Hancock, Marlon D. Cowart
  • Patent number: 7553964
    Abstract: Compounds of formula (I) are useful in treating conditions or disorders prevented by or ameliorated by histamine-3 receptor ligands. Also disclosed are pharmaceutical compositions comprising the histamine-3 receptor ligands, methods for using such compounds and compositions, and a process for preparing compounds within the scope of formula (I).
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: June 30, 2009
    Assignee: Abbott Laboratories
    Inventors: Huaqing Liu, Kathryn J. Hancock, legal representative, Marlon D. Cowart, Arthur A. Hancock
  • Publication number: 20090163464
    Abstract: Compounds of formula (I) are useful in treating conditions or disorders prevented by or ameliorated by histamine-3 receptor ligands. Also disclosed are pharmaceutical compositions of compounds of formula (I), methods for using such compounds and compositions, and a process for preparing the compounds.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 25, 2009
    Applicant: Abbott Laboratories
    Inventors: Lawrence A. Black, Marlon D. Cowart, Gregory A. Gfesser, Brian D. Wakefield, Robert J. Altenbach, Huaqing Liu, Chen Zhao, Gin C. Hsieh
  • Publication number: 20090105267
    Abstract: The invention relates to octahydro-pyrrolo[3,4-b]pyrrole N-oxides as prodrugs of CNS-active compounds, compositions comprising such compounds, methods for making the compounds, salts, and polymorphs, and methods of treating conditions and disorders using such compounds and compositions. Octahydro-pyrrolo[3,4-b]pyrrole N-oxides of formula (I) are prodrugs of histamine-3 antagonists, and are useful in treating conditions or disorders prevented by or ameliorated by histamine-3 receptor ligands. Octahydro-pyrrolo[3,4-b]pyrrole N-oxide compounds, methods for using such compounds, compositions for making them, and processes for preparing such compounds are disclosed herein.
    Type: Application
    Filed: September 11, 2008
    Publication date: April 23, 2009
    Applicant: Abbott Laboratories
    Inventors: Marlon D. Cowart, Kennan C. Marsh, Huaqing Liu, Jae Y. Lee, Maria G. Beconi, Jill M. Wetter, Lawrence A. Black, Thomas C. Custer
  • Publication number: 20090054420
    Abstract: Compounds of formula (I) are useful in treating conditions or disorders prevented by or ameliorated by histamine-3 receptor ligands. Also disclosed are pharmaceutical compositions comprising the histamine-3 receptor ligands, methods for using such compounds and compositions, and a process for preparing compounds within the scope of formula (I).
    Type: Application
    Filed: August 21, 2008
    Publication date: February 26, 2009
    Applicant: ABBOTT LABORATORIES
    Inventors: Robert J. Altenbach, Lawrence A. Black, Sou-Jen Chang, Marlon D. Cowart, Ramin Faghih, Gregory A. Gfesser, Yi-Yin Ku, Huaqing Liu, Kirill A. Lukin, Diana L. Nersesian, Yu-ming Pu, Padam N. Sharma, Youssef L. Bennani, Michael P. Curtis
  • Publication number: 20090042888
    Abstract: The present invention describes pyridazinone compounds of formula I which are cyclooxygenase (COX) inhibitors, and in particular, are selective inhibitors of cyclooxygenase-2 (COX-2). COX-2 is the inducible isoform associated with inflammation, as opposed to the constitutive isoform, cyclooxygenase-1 (COX-1) which is an important “housekeeping” enzyme in many tissues, including the gastrointestinal (GI) tract and the kidneys. The selectivity of these compounds for COX-2 minimizes the unwanted GI and renal side-effects seen with currently marketed non-steroidal anti-inflammatory drugs (NSAIDs).
    Type: Application
    Filed: June 23, 2006
    Publication date: February 12, 2009
    Inventors: Lawrence A. Black, Anwer Basha, Teodozyj Kolasa, Michael E. Kort, Huaqing Liu, Catherine M. McCarty, Meena Patel, Jeffrey J. Rohde, Michael J. Coghlan, Andrew O. Stewart
  • Patent number: 7456196
    Abstract: Compounds of formula (I) are useful in treating conditions or disorders prevented by or ameliorated by histamine-3 receptor ligands. Also disclosed are pharmaceutical compositions comprising the histamine-3 receptor ligands, methods for using such compounds and compositions, and a process for preparing compounds within the scope of formula (I).
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: November 25, 2008
    Assignee: Abbott Laboratories
    Inventors: Robert J. Altenbach, Marlon D. Cowart, Huaqing Liu
  • Publication number: 20080275226
    Abstract: The present invention provides the medical use of paeoniflorin in the manufacture of medicaments for treating and preventing apoplexy, Parkinson's diseases and other nervous system diseases.
    Type: Application
    Filed: June 27, 2005
    Publication date: November 6, 2008
    Inventors: Xingzu Zhu, Dazhi Liu, Yang Ye, Huaqing Liu
  • Publication number: 20080242653
    Abstract: Compounds of formula (I) wherein R1, R2, R3, R3a, R3b, R4, and R5 are defined in the description, are useful in treating conditions or disorders prevented by or ameliorated by histamine-3 receptor ligands. Also disclosed are pharmaceutical compositions comprising the histamine-3 receptor ligands, methods for using such compounds and compositions, and a process for preparing compounds within the scope of formula (I).
    Type: Application
    Filed: December 14, 2007
    Publication date: October 2, 2008
    Inventors: Huaqing Liu, Lawrence A. Black, Youssef L. Bennani, Marlon D. Cowart, Zhenping Tian, Paul J. Brackemeyer
  • Publication number: 20080194538
    Abstract: This invention discloses a method of treating pain by administering histamine H4 receptor ligands and compositions comprising the same.
    Type: Application
    Filed: September 28, 2007
    Publication date: August 14, 2008
    Inventors: Marlon D. Cowart, Robert J. Altenbach, Huaqing Liu, Irene Drizin, Neil Wishart, David J. Babinski, Robert J. Gregg, Arthur A. Hancock, Timothy A. Esbenshade, Gin C. Hsieh, Jorge D. Brioni, Marie P. Honore, Lawrence A. Black, Chen Zhao, Brian D. Wakefield, Kathryn J. Hancock
  • Publication number: 20080188452
    Abstract: Macrocyclic benzofused pyrimidine compounds, compositions comprising such compounds, methods for making the compounds, and methods of treating and preventing the progression of diseases, conditions and disorders using such compounds and compositions are described herein.
    Type: Application
    Filed: September 28, 2007
    Publication date: August 7, 2008
    Inventors: Robert J. Altenbach, Huaqing Liu, Irene Drizin, Marlon D. Cowart, Neil Wishart, David J. Babinski, Robert J. Gregg, Arthur A. Hancock, Kathryn J. Hancock, Timothy A. Esbenshade, Gin C. Hsieh, Jorge D. Brioni, Marie P. Honore, Lawrence A. Black, Chen Zhao, Brian D. Wakefield
  • Publication number: 20080076391
    Abstract: The present invention discloses a method for implementing a Push-To-Talk (PTT) service, including: establishing a connection between a terminal and a conference room in a conference system with half-duplex communication mode; receiving a request sent by the terminal and providing the PTT corresponding to the request according to a stored corresponding relation between the PTT services and the requests. According to the method, PTT service talk among conference room members or groups in the conference room is implemented. Embodiments of the present invention also disclose another method for implementing the PTT service, as well as a terminal, a conference application server and a system for implementing the PTT service. According to the embodiments of the present invention, the PTT service with wide signal coverage and small call delay is implemented.
    Type: Application
    Filed: September 21, 2007
    Publication date: March 27, 2008
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zhenyu CHEN, Hao YAO, Huaqing LIU, Xinping LV
  • Publication number: 20080021081
    Abstract: Compounds of formula (I) are useful in treating conditions or disorders prevented by or ameliorated by histamine-3 receptor ligands. Also disclosed are pharmaceutical compositions comprising the histamine-3 receptor ligands, methods for using such compounds and compositions, and a process for preparing compounds within the scope of formula (I).
    Type: Application
    Filed: June 22, 2007
    Publication date: January 24, 2008
    Inventors: Huaqing Liu, Lawrence Black, Youssef Bennani, Marlon Cowart
  • Patent number: 7205316
    Abstract: Compounds of formula (I) wherein R1 or R2 is a tricyclic or bicyclic ring, each of which contains at least two heteroatoms, and R1, R2, R3, R3a, R3b, R4, R5, L, X, X?, Y, Y?, Z, and Z? are as defined herein, are useful in treating conditions or disorders prevented by or ameliorated by histamine-3 receptor ligands. Also disclosed are pharmaceutical compositions comprising the histamine-3 receptor ligands, methods for using such compounds and compositions, and a process for preparing compounds within the scope of formula (I).
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: April 17, 2007
    Assignee: Abbott Laboratories
    Inventors: Robert J. Altenbach, Lawrence A. Black, Marlon D. Cowart, Huaqing Liu
  • Publication number: 20070078133
    Abstract: Compounds of formula (I) are useful in treating conditions or disorders prevented by or ameliorated by histamine-3 receptor ligands. Also disclosed are pharmaceutical compositions comprising the histamine-3 receptor ligands, methods for using such compounds and compositions, and a process for preparing compounds within the scope of formula (I).
    Type: Application
    Filed: June 1, 2006
    Publication date: April 5, 2007
    Inventors: Huaqing Liu, Arthur Hancock, Marlon Cowart, Kathryn Hancock
  • Patent number: 7153889
    Abstract: Compounds of formula (I) are useful in treating conditions or disorders prevented by or ameliorated by histamine-3 receptor ligands. Also disclosed are pharmaceutical compositions comprising the histamine-3 receptor ligands, methods for using such compounds and compositions, and a process for preparing compounds within the scope of formula (I).
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: December 26, 2006
    Assignee: Abbott Laboratories
    Inventors: Robert J. Altenbach, Lawrence A. Black, Sou-Jen Chang, Marlon D. Cowart, Ramin Faghih, Gregory A. Gfesser, Yi-Yin Ku, Huaqing Liu, Kirill A. Lukin, Diana L. Nersesian, Yu-ming Pu, Padam N. Sharma, Youssef L. Bennani, Michael P. Curtis