Patents Assigned to Bristol-Myers Squibb Pharma Comapany
  • Composition comprising low density microspheres
    Patent number: 6998107
    Abstract: Low density microspheres, methods for preparing same, and use of same as contrast agents are described. The microspheres have a void having a volume that comprises at least about 75% of the total volume of the microspheres, and which contains a gas or the vapor of a volatile liquid selected from the group consisting of aliphatic hydrocarbons, chlorofluorocarbons, tetraalkyl silanes and perfluorocarbons.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: February 14, 2006
    Assignee: Bristol-Myers Squibb Pharma Comapany
    Inventor: Evan C. Unger