Patents by Inventor William E. Longo

William E. Longo 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).

  • Magnetically responsive, hydrophilic microspheres for incorporation of therapeutic substances and methods of preparation thereof
    Patent number: 4871716
    Abstract: Novel magnetically responsive hydrophilic protein or polypeptide microspheres prepared by dispersing an aqueous solution or dispersion of protein or polypeptide and particulate magnetically responsive material in an organic solvent solution of a high molecular weight polymer to form a stabilized dispersion of microspheres and cross-linking said microspheres with a polyfunctional cross-linking agent.
    Type: Grant
    Filed: December 3, 1986
    Date of Patent: October 3, 1989
    Assignee: University of Florida
    Inventors: William E. Longo, Richard A. McCluskey, Eugene P. Goldberg
  • Microspheres for incorporation of therapeutic substances and methods of preparation thereof
    Patent number: 4671954
    Abstract: Novel hydrophilic protein or polypeptide microspheres prepared by dispersing an aqueous solution or dispersion of protein or polypeptide in an organic solvent solution of a high molecular weight polymer to form a stabilized dispersion of microspheres and cross-linking said microspheres with a polyfunctional cross-linking agent.
    Type: Grant
    Filed: February 4, 1986
    Date of Patent: June 9, 1987
    Assignee: University of Florida
    Inventors: Eugene P. Goldberg, William E. Longo, Hiroo Iwata