Patents by Inventor Alessandro Veltri

Alessandro Veltri 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).

  • Holographic diffraction grating, process for its preparation and opto-electronic devices incorporating it
    Publication number: 20070019152
    Abstract: Composite polymer/liquid crystal material having a holographic grating structure formed by an alternating ordered succession of polymer layers and nematic liquid crystal layers. The nematic liquid crystal layers comprise an ordered nematic monophase region which is substantially free from liquid crystal droplets.
    Type: Application
    Filed: July 8, 2004
    Publication date: January 25, 2007
    Inventors: Robert Caputo, Cesare Umeton, Alessandro Veltri, Audrey Sukhov, Nelson Tabiryan
  • Orthodontic device for aligning and displacing teeth
    Publication number: 20010038991
    Abstract: An orthodontic device for aligning and displacing teeth comprises an attachment which can be applied to a tooth and having a vestibular surface and being characterized in that the vestibular surface comprises two or more slots for receiving each an orthodontic wire.
    Type: Application
    Filed: April 30, 2001
    Publication date: November 8, 2001
    Inventors: Veltri Nicola, Alessandro Veltri