Patents by Inventor Ronald R. Ronallo

Ronald R. Ronallo 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).

  • Apparatus for growing silicon carbide crystals
    Patent number: 5667587
    Abstract: A silicon carbide growth container for placement into a crystal growing furnace. The growth container has a liner of pyrolytic graphite which seals the inside of the container and allows for easy removal of the grown silicon carbide crystal.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: September 16, 1997
    Assignee: Northrop Gruman Corporation
    Inventors: Robert C. Glass, Walter E. Gaida, Ronald R. Ronallo, Hudson McDonald Hobgood