Patents by Inventor Donald E Zelonis

Donald E Zelonis 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).

  • APPARATUS AND METHOD FOR BARRIER LAYER EXISTENCE DETERMINATION USING FLUORESCENCE MEASUREMENTS
    Publication number: 20090091050
    Abstract: A fabrication method is provided for forming a multilayer preform with a barrier layer and determining the existence of the barrier layer in the multilayer preform. The barrier layer may consist essentially of a polymeric material without any optical brighteners. The multilayer preform may be illuminated with ultra-violet (UV) light. The fluorescence caused by the interaction of the UV light with the multilayer preform may be measured to generate a fluorescence signal. Based on the fluorescence signal, the existence of the barrier layer in the multilayer preform may be determined.
    Type: Application
    Filed: October 5, 2007
    Publication date: April 9, 2009
    Inventors: Donald E Zelonis, Sam Kalmouni