Patents by Inventor C. Gray McCullah

C. Gray McCullah 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).

  • Safety pillow for preventing smoke inhalation
    Patent number: 4854314
    Abstract: A porous bag filled with relatively small, loose, oil coated polystyrene beads permits sufficient air intake and adequately prevents smoke inhalation when placed over the nose and mouth while in most smoky atmospheres.
    Type: Grant
    Filed: November 13, 1987
    Date of Patent: August 8, 1989
    Inventors: Roy E. Martin, John H. Parr, C. Gray McCullah