Patents by Inventor Frank Portugal

Frank Portugal 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).

  • Optical fiber evanescent field excited fluorosensor and method of manufacture
    Patent number: 6558958
    Abstract: An optical fiber is tapered, preferably adiabatically, and has a material coated on it for chemical bonding with fluorophores. When the fluorophores couple with the material, evanescent radiation generated fibers causes the fluorophores to fluoresce, and the fluorescence is coupled back into the fiber.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: May 6, 2003
    Assignee: University of Maryland
    Inventors: Saeed Pilevar, Christopher C. Davis, Alexander J. Fielding, Frank Portugal
  • Optical fiber evanescent field excited fluorosensor and method of manufacture
    Patent number: 6103535
    Abstract: An optical fiber is tapered, preferably adiabatically, and has a material coated on it for chemical bonding with fluorophores. When the fluorophores couple with the material, evanescent radiation generated fibers causes the fluorophores to fluoresce, and the fluorescence is coupled back into the fiber.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: August 15, 2000
    Assignee: University of Maryland
    Inventors: Saeed Pilevar, Christopher C. Davis, Alexander J. Fielding, Frank Portugal