Patents by Inventor Robert R. Racs

Robert R. Racs 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).

  • Retroreflective device having curved retroreflective surface
    Patent number: 4653955
    Abstract: There is disclosed a highway lane divider and road marker, having a relatively low profile, characterized by the inventive feature of a unidirectionally curved retroreflective element, as opposed to planar retroreflective elements used heretofore.
    Type: Grant
    Filed: May 7, 1986
    Date of Patent: March 31, 1987
    Assignee: Ferro Corporation
    Inventor: Robert R. Racs