Patents by Inventor George Demetrios Pappas

George Demetrios Pappas 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).

  • Implantable cells that alleviate chronic pain in humans
    Patent number: 5656267
    Abstract: This invention provides a method of alleviating chronic pain in humans. Viable, implantable cells are selected which release neuroactive substances that reduce chronic pain. The cells are cultured to improve their viability, and administered into a region of the central nervous system of a patient who is suffering from chronic pain. The cells continue to secrete the neuroactive substances within the patient without exogenous stimulation. Suitable implantable cells include adrenal medullary tissue cells, chromaffin cells or genetically engineered cells.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: August 12, 1997
    Inventors: Jacqueline Sagen, George Demetrios Pappas