Patents by Inventor Wilma A. Saffran

Wilma A. Saffran 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).

  • Biotinylated psoralens
    Patent number: 4868311
    Abstract: The present invention provides a compound having the formula ##STR1## wherein Y is biotin or iminobiotin, X is CH.sub.2, P is psoralen or a psoralen derivative, r is an integer equal to or greater than 2 and s is an integer equal to or greater than 1.The invention also provides a method for preparing a biotinylated psoralen or a biotinylated psoralen derivative.Further provided are methods for detecting, purifying, and isolating nucleic acids, and methods for delivering an iminobiotinylated psoralen to a cell.
    Type: Grant
    Filed: April 2, 1988
    Date of Patent: September 19, 1989
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Wilma A. Saffran, Richard L. Edelson, Francis P. Gasparro, John T. Welsh, Charles R. Cantor