Patents by Inventor Gregory B. Huffman

Gregory B. Huffman 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).

  • Exhaust stack cover
    Patent number: D378922
    Type: Grant
    Filed: December 28, 1994
    Date of Patent: April 22, 1997
    Inventor: Gregory B. Huffman