Patents by Inventor Michael C. Theodorakis

Michael C. Theodorakis 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).

  • Biodegradable ocular insert for controlled delivery of ophthalmic medication
    Patent number: 4439198
    Abstract: An ocular insert is disclosed that is attachable to the third eyelid of animals to provide controlled delivery of ophthalmic medication. The insert includes a disc impregnated with medication in controlled-release form and a biodegradable spear for attachment of the insert to the third eyelid. An insert effective for treatment of infectious bovine keratoconjunctivitis comprises a disc impregnated with chloramphenicol sodium monosuccinate and a spear of biodegradable polylactic acid which provides for retention of the insert in the eye, and consequent medication, for up to seven days.
    Type: Grant
    Filed: July 9, 1981
    Date of Patent: March 27, 1984
    Assignee: University of Illinois Foundation
    Inventors: Alan H. Brightman, II, Michael C. Theodorakis
  • Radiodiagnostic agent
    Patent number: 4115540
    Abstract: A radiodiagnostic agent comprising a solid, insoluble nontoxic synthetic resin, such as polystyrene, bearing a detectable amount of technetium 99m thereon. This agent is useful for analyzing the gastrointestinal tract, for example, for gastric emptying time, by means of a gamma camera.
    Type: Grant
    Filed: June 16, 1976
    Date of Patent: September 19, 1978
    Assignee: The University of Kentucky Research Foundation
    Inventors: George A. Digenis, Manvendra B. Shambhu, Michael C. Theodorakis