Patents by Inventor Chun-Su Yuan

Chun-Su Yuan 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: 20040162306
    Abstract: A method of preventing or treating constipation in a patient who has been chronically taking opioids, the method comprising administering a quaternary derivative of noroxymorphone in an amount sufficient to prevent or treat the side effect in the patient, but which amount would be insufficient to treat a patient with the same opioid-induced side effect who had not chronically been administered opioids.
    Type: Application
    Filed: February 12, 2004
    Publication date: August 19, 2004
    Inventors: Joseph F. Foss, Michael F. Roizen, Jonathan Moss, Chun-Su Yuan, William Drell
  • Publication number: 20030187010
    Abstract: A method of preventing or treating an opioid-induced side effect in a patient who has been chronically taking opioids, the method comprising administering a quaternary derivative of noroxymorphone in an amount sufficient to prevent or treat the side effect in the patient, but which amount would be insufficient to treat a patient with the same opioid-induced side effect who had not chronically been administered opioids.
    Type: Application
    Filed: February 4, 2003
    Publication date: October 2, 2003
    Inventors: Joseph F. Foss, Michael F. Roizen, Jonathan Moss, Chun-Su Yuan, William Drell
  • Publication number: 20030158220
    Abstract: A method of preventing or treating an opioid-induced side effect in a patient who has been chronically taking opioids, the method comprising administering a quaternary derivative of noroxymorphone in an amount sufficient to prevent or treat the side effect in the patient, but which amount would be insufficient to treat a patient with the same opioid-induced side effect who had not chronically been administered opioids.
    Type: Application
    Filed: February 4, 2003
    Publication date: August 21, 2003
    Inventors: Joseph F. Foss, Michael F. Roizen, Jonathan Moss, Chun-Su Yuan, William Drell
  • Patent number: 6608075
    Abstract: A method for preventing or treating opioid induced changes in gastrointestinal motility. The method comprises administering methylnaltrexone or another quaternary derivative of noroxymorphone to a patient prior to the administration of an opioid or after the onset of side effects induced by the administration of an opioid, wherein the methylnaltrexone or quaternary derivative is administered orally in an enterically coated form.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: August 19, 2003
    Assignees: The University of Chicago, U.R. Labs
    Inventors: Joseph F. Foss, Michael F. Roizen, Jonathan Moss, Chun-Su Yuan, William Drell
  • Patent number: 6559158
    Abstract: A method of preventing or treating an opioid-induced side effect in a patient who has been chronically taking opioids, the method comprising administering a quaternary derivative of noroxymorphone in an amount sufficient to prevent or treat the side effect in the patient, but which amount would be insufficient to treat a patient with the same opioid-induced side effect who had not chronically been administered opioids.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: May 6, 2003
    Assignees: UR Labs, Inc., The University of Chicago
    Inventors: Joseph F. Foss, Michael F. Roizen, Jonathan Moss, Chun-Su Yuan, William Drell
  • Publication number: 20030065003
    Abstract: A method for preventing or treating opioid induced side effects including changes in gastrointestinal motility. The method comprises administering methylnaltrexone or another quaternary derivative of noroxymorphone to a patient prior to the administration of an opioid or after the onset of side effects induced by the administration of an opioid, wherein the methylnaltrexone or quaternary derivative is administered orally in an enterically coated form.
    Type: Application
    Filed: October 23, 2002
    Publication date: April 3, 2003
    Applicant: The University of Chicago
    Inventors: Joseph F. Foss, Michael F. Roizen, Jonathan Moss, Chun-Su Yuan, William Drell
  • Publication number: 20030022909
    Abstract: Methods for treating opioid-induced immune suppression with peripheral opioid antagonists are provided. In one embodiment, the method involves administering methylnaltrexone. Pharmaceutical compositions comprising an opioid, an opioid antagonist, and a pharmaceutical agent are also provided.
    Type: Application
    Filed: June 5, 2002
    Publication date: January 30, 2003
    Applicant: University of Chicago
    Inventors: Jonathan Moss, Chun-Su Yuan
  • Publication number: 20020136785
    Abstract: The present invention relates to methods and compositions for the use in treating type 2 diabetes and obesity. More specifically, the invention relates to the methods of screening for the active compound from berries from plants of the Panax genus that decreases blood glucose and decreases body weight. It is contemplated that the active compound may comprise a ginsenoside or a combination thereof.
    Type: Application
    Filed: October 9, 2001
    Publication date: September 26, 2002
    Inventor: Chun-Su Yuan
  • Publication number: 20020028825
    Abstract: A method for preventing or treating opioid induced side effects including changes in gastrointestinal motility. The method comprises administering methylnaltrexone or another quaternary derivative of noroxymorphone to a patient prior to the administration of an opioid or after the onset of side effects induced by the administration of an opioid, wherein the methylnaltrexone or quaternary derivative is administered orally in an enterically coated form.
    Type: Application
    Filed: May 21, 2001
    Publication date: March 7, 2002
    Inventors: Joseph F. Foss, Michael F. Roizen, Jonathan Moss, Chun-Su Yuan, William Drell
  • Patent number: 6274591
    Abstract: A method for preventing or treating the opioid induced side effect, inhibition of gastrointestinal motility is disclosed. The method comprises administering methylnaltrexone or another quaternary derivative of noroxymorphone to a patient prior to the administration of an opioid or after the onset of side effects induced by the administration of an opioid, wherein the methylnaltrexone or quaternary derivative is administered orally in an enterically coated form.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: August 14, 2001
    Inventors: Joseph F. Foss, Michael F. Roizen, Jonathan Moss, Chun-Su Yuan, William Drell
  • Patent number: 5972954
    Abstract: A method for preventing or treating opioid induced side effects including dysphoria, pruritus and urinary retention and non-opioid induced changes in gastrointestinal motility. The method comprises administering methylnaltrexone or another quaternary derivative of noroxymorphone to a patient prior to the administration of an opioid or after the onset of side effects induced by the administration of an opioid, wherein the methylnaltrexone or quaternary derivative is administered by the route selected from the group consisting of intravenous, intramuscular, transmucosal, transdermal, and oral administration, preferably administered orally in an enterically coated form.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: October 26, 1999
    Assignees: Arch Development Corporation, UR Labs, Inc.
    Inventors: Joseph F. Foss, Michael F. Roizen, Jonathan Moss, Chun-Su Yuan, William Drell