Patents by Inventor Michael Huai Gu Chen

Michael Huai Gu Chen 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: 7411001
    Abstract: The present invention relates to oxygenated esters of 4-iodophenylamino benzhydroxamic acid derivatives, pharmaceutical compositions and methods of use thereof. The present invention also relates to crystalline forms of oxygenated esters of 4-iodophenylamino benzhydroxamic acid derivatives, pharmaceutical compositions and methods of use thereof.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: August 12, 2008
    Assignee: Warner-Lambert Company
    Inventors: Stephen Douglas Barrett, Cathlin Marie Biwersi, Michael Huai Gu Chen, Michael David Kaufman, Haile Tecle, Joseph Scott Warmus
  • Publication number: 20040054172
    Abstract: The present invention relates to oxygenated esters of 4-iodophenylamino benzhydroxamic acid derivatives, pharmaceutical compositions and methods of use thereof. The present invention also relates to crystaline forms of oxygenated esters of 4-iodophenylamino benzhydroxamic acid derivatives, pharmaceutical compositions and methods of use thereof.
    Type: Application
    Filed: June 19, 2003
    Publication date: March 18, 2004
    Inventors: Stephen Douglas Barrett, Cathlin Marie Biwersi, Michael Huai Gu Chen, Michael David Kaufman, Haile Tecle, Joseph Scott Warmus
  • Publication number: 20040039208
    Abstract: The present invention relates to a process for the preparation of N-arylanthranilic acids, and a process for the preparation of N-aryl anthranilic esters, amides, and hydroxamic esters.
    Type: Application
    Filed: February 7, 2003
    Publication date: February 26, 2004
    Inventors: Michael Huai Gu Chen, Edward Mark Davis, Javier Magano, Thomas Norman Nanninga, Derick Dale Winkle
  • Patent number: 6686499
    Abstract: The present invention relates to a method for making 2-N-phenylamino)benzoic acids by coupling a benzoic acid and an aniline using an alkaline metal hexamethyldisilazide as a base.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: February 3, 2004
    Assignee: Warner-Lambert Company
    Inventors: Michael Huai Gu Chen, Javier Magano
  • Patent number: 6602886
    Abstract: The small nonpeptides of the instant invention are tachykinin antagonists. The compounds are highly selective and functional NK3 antagonists expected to be useful in the treatment of pain, depression, anxiety, panic, schizophrenia, neuralgia, addiction disorders, inflammatory diseases, gastrointestinal disorders, vascular disorders, and neuropathological disorders.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: August 5, 2003
    Assignee: Warner-Lambert Company
    Inventors: Michael Huai Gu Chen, Fu-Zon Chung, Helen Tsenwhei Lee
  • Publication number: 20030073838
    Abstract: The small nonpeptides of the instant invention are tachykinin antagonists. The compounds are highly selective and functional NK3 antagonists expected to be useful in the treatment of pain, depression, anxiety, panic, schizophrenia, neuralgia, addiction disorders, inflammatory diseases, gastrointestinal disorders, vascular disorders, and neuropathological disorders.
    Type: Application
    Filed: June 21, 2002
    Publication date: April 17, 2003
    Inventors: Michael Huai Gu Chen, Fu-Zon Chung, Helen Tsenwhei Lee
  • Patent number: 6433178
    Abstract: The small nonpeptides of the instant invention are tachykinin antagonists. The compounds are highly selective and functional NK3 antagonists expected to be useful in the treatment of pain, depression, anxiety, panic, schizophrenia, neuralgia, addiction disorders, inflammatory diseases, gastrointestinal disorders, vascular disorders, and neuropathological disorders.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: August 13, 2002
    Assignee: Warner-Lambert Company
    Inventors: Michael Huai Gu Chen, Fu-Zon Chung, Helen Tsenwhei Lee
  • Publication number: 20010037023
    Abstract: The small nonpeptides of the instant invention are tachykinin antagonists. The compounds are highly selective and functional NK3 antagonists expected to be useful in the treatment of pain, depression, anxiety, panic, schizophrenia, neuralgia, addiction disorders, inflammatory diseases, gastrointestinal disorders, vascular disorders, and neuropathological disorders.
    Type: Application
    Filed: June 4, 2001
    Publication date: November 1, 2001
    Inventors: Michael Huai Gu Chen, Fu-Zon Chung, Helen Tsenwhei Lee
  • Patent number: 6258800
    Abstract: The instant invention provides aqueous soluble prodrugs of formula (I) or a pharmaceutically acceptable salt thereof wherein R is —CH2OZ, —C(═O)OCH2OZ or Z, wherein Z is formula (a), —P(═O)(OH)2 or —C(═O)Q: n is an integer of from 0 to 3; m is an integer of from 0 to 1, of certain tachykinin antagonists (NK1 antagonists) useful in the treatment of emesis.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: July 10, 2001
    Assignee: Warner-Lambert Company
    Inventors: Michael Huai Gu Chen, Om Prakash Goel, Fred M. Hershenson, Zhijian Zhu, Oilun Helen Chan
  • Patent number: 6040316
    Abstract: The small nonpeptides of the instant invention are tachykinin antagonists of formula ##STR1## or a pharmaceutically acceptable salt thereof wherein: R.sub.1 is straight or branched alkyl of from 5 to 15 carbon atoms, aryl, or heteroaryl;R.sub.2 is hydrogen, hydroxy, amino, or thiol;R.sub.3 is aryl, arylsulfonylmethyl, or saturated or unsaturated heterocycle;R.sub.4 is from 1 to 4 groups each independently selected from halogen, alkyl, hydroxy, and alkoxy;n is an integer of from 2 to 6; and the carbon atom of (CH.sub.2).sub.n group can be replaced by oxygen, nitrogen, or sulphur. The compounds are highly selective and functional NK.sub.3 antagonists expected to be useful in the treatment of pain, depression, anxiety, panic, schizophrenia, neuralgia, addiction disorders, inflammatory diseases, gastrointestinal disorders, vascular disorders, and neuropathological disorders.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: March 21, 2000
    Assignee: Warner-Lambert Company
    Inventors: Michael Huai Gu Chen, Fu-Zon Chung, Helen Tsenwhei Lee