Patents by Inventor Jack W. Swain

Jack W. Swain 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).

  • Drill pipe protector
    Patent number: 4266578
    Abstract: A cylindrical drill pipe protector (10) having a skeleton (34,36) with inner (40) and outer (42) layers of rubber bonded to the skeleton.
    Type: Grant
    Filed: March 23, 1979
    Date of Patent: May 12, 1981
    Assignee: Regal Tool & Rubber Co., Inc.
    Inventors: Jack W. Swain, Clarence T. Thomerson, Tom C. Waldrop