Patents by Inventor John R. Belieff

John R. Belieff 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).

  • Patent number: 4720941
    Abstract: A tool for sanding, grinding, or polishing ferrous or non-ferrous work pieces which includes a plurality of abrasive particles, such as silica sand or the like, embedded in a binder matrix formed primarily of polytetrafluoroethylene and equivalent polymers. The matrix may further include a stiffening agent for adding rigidity to the tool, such as ground glass.
    Type: Grant
    Filed: June 23, 1986
    Date of Patent: January 26, 1988
    Assignee: Jo-Ed Enterprises, Inc.
    Inventors: John R. Belieff, Clarence E. Southward