Patents by Inventor Susan Ludeman

Susan Ludeman 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).

  • Method of isolating stem cells
    Publication number: 20060051833
    Abstract: The present invention relates, in general, to stem cells, and in particular, to a method of isolating stem cells and to reagents suitable for use in such a method. The invention further relates to stem cell populations isolatable in accordance with the present method.
    Type: Application
    Filed: October 11, 2005
    Publication date: March 9, 2006
    Applicant: Duke University
    Inventors: Clayton Smith, Michael Colvin, Robert Storms, Susan Ludeman
  • Multipart drug delivery system
    Patent number: 6322815
    Abstract: Polymeric drug conjugates in controlled release matrices are provided which allow sustained concentrations of therapeutic agents within a treated area for a prolonged period. The polymeric drug conjugates hydrolytically degrade in the extracellular space in a controlled, pre-specified pattern, releasing active drug. The conjugates diffuse within the tissue reaching a greater distance from the matrix than free drug would, because of their reduced rate of clearance from the tissue via the capillary system.
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: November 27, 2001
    Inventors: W. Mark Saltzman, O. Michael Colvin, Wenbin Dang, Susan Ludeman