Patents by Inventor Charlie Sobottka

Charlie Sobottka 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).

  • Microstructured screen and method of manufacturing using coextrusion
    Publication number: 20050127541
    Abstract: The present invention is a method of forming an optical film including the following steps: providing a first film of a first material, extruding a second material to form a second film in a molten state; maintaining the second film in a molten state; bringing the first film proximate the molten second film; patterning the molten second film to form a plurality of structures, the structures defining a plurality of cavities therebetween; and solidifying the molten second film.
    Type: Application
    Filed: December 11, 2003
    Publication date: June 16, 2005
    Inventors: Kathryn Spurgeon, Peter Cullen, Patrick Thomas, Charlie Sobottka, S. Bridges, Robert Moshrefzadeh