Patents by Inventor Ronald L. Frey

Ronald L. Frey 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).

  • Railway car
    Patent number: 4800819
    Abstract: A railway idler car used as a spacer car between loaded cars that carry very long objects, such as plates, girders, structural steel, pipe, poles and the like. The car is of a skeleton design and is incapable of carrying freight.
    Type: Grant
    Filed: November 9, 1984
    Date of Patent: January 31, 1989
    Assignee: Bethlehem Steel Corp.
    Inventor: Ronald L. Frey