Patents by Inventor Emil L. Wiuniski

Emil L. Wiuniski 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).

  • Livestock watering trough
    Patent number: 3948221
    Abstract: A self contained rectangular fiberglass watering trough supportable by hangers and mountable on a platform or pedestal and defining a water holding cavity containing a novel detachable cover over a part of the cavity covering a valve means for controlling water flow into the cavity.
    Type: Grant
    Filed: June 26, 1974
    Date of Patent: April 6, 1976
    Assignee: Corral Industries, Incorporated
    Inventor: Emil L. Wiuniski