Patents by Inventor Alan Klein

Alan Klein 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).

  • Publication number: 20070137256
    Abstract: The specification describes an improved VAD method wherein a multi-layer preform, with three or more layers of material having different refractive indices, are produced. The method involves the combination of tandem dual torch deposition, and multiple pass deposition, without consolidation between multiple passes.
    Type: Application
    Filed: December 19, 2005
    Publication date: June 21, 2007
    Inventors: Eric Barish, Alan Klein, Fengging Wu