Patents by Inventor Xiu Chun Wang

Xiu Chun Wang 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).

  • Fused bicycloheterocycle substituted quinuclidine derivatives
    Patent number: 7655657
    Abstract: Compounds of formula (II): known as: 5-{6-[(3R)-1-azabicyclo[2.2.2]oct-3-yloxy]pyridazin-3-yl}-1-H-indole salt with (2R, 3R)-2,3-dihydroxybutanedioic acid (1:1).
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: February 2, 2010
    Assignee: Abbott Laboratories
    Inventors: Eric J. Stoner, Alan Christesen, Ahmad Y. Sheikh, Xiu Chun Wang, Agnes Pal, David B. Murphey, Jianguo Ji, Devalina Law, Daozhong Zou
  • Process for the preparation of iohexol
    Patent number: 5847212
    Abstract: Provided is a novel process for the preparation of iohexol having reduced number of isolated intermediates and significantly reduces or eliminates the use of ion-exchange resins required to desalinate the final product.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: December 8, 1998
    Assignee: Abbott Laboratories
    Inventors: Xiu Chun Wang, Ashok V. Bhatia, Steven A. Chamberlin