Patents by Inventor Albert D. Ellis

Albert D. Ellis 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).

  • Core drill bit
    Patent number: D363294
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: October 17, 1995
    Inventor: Albert D. Ellis