Patents by Inventor Barry L. Riutta

Barry L. Riutta 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).

  • Investment cast stainless steel marine propeller
    Patent number: 6427759
    Abstract: An investment cast stainless steel article, such as a marine propeller, is composed of a stainless steel alloy containing from 14.5 to 15.2% chromium, 5.35% to 6.05% nickel and 1.0% to 1.5% silicon.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: August 6, 2002
    Assignee: Brunswick Corporation
    Inventors: Richard S. Bauer, Barry L. Riutta, Terrance M. Cleary, Raymond J. Donahue, Kevin R. Anderson