Patents by Inventor Daniel E. Zampa

Daniel E. Zampa 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).

  • Photoluminescent retroreflective sheeting
    Patent number: 5415911
    Abstract: A photoluminescent retroreflective sheeting for use in structures when a power outage occurs. Guidance systems are made from this sheeting to mark exits and escape routes as well as possible hazards and safety devices. The novel sheeting includes photoluminescent properties that glow in the dark as well as retroreflective properties that retroreflect light incident upon the same sheet such that only one sheet has to be used rather than individual sheets with separate properties.
    Type: Grant
    Filed: February 9, 1993
    Date of Patent: May 16, 1995
    Assignee: Stimsonite Corporation
    Inventors: Daniel E. Zampa, Alex A. Szopinski