Patents by Inventor Bill C. Sager

Bill C. Sager 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).

  • Growth of cells in hollow fibers in an agitated vessel
    Patent number: 5162225
    Abstract: Hollow fiber structures for culturing mammalian cells in an agitated media are disclosed. These hollow fibers have a cylindrical wall surrounding a lumen preferably open at opposite ends of the fiber and have a length along the axis parallel to the lumen of not more than 5 centimeters. Hollow fiber structures which have their exterior surface coated to prevent cell attachment and growth thereon are also disclosed.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: November 10, 1992
    Assignee: The Dow Chemical Company
    Inventors: Bill C. Sager, Melvin Rothberg, Roger B. Hornby, Jeffrey D. Michalowski, David J. Forgach, Gordon E. Fleig