Patents by Inventor Jeff Hirsh

Jeff Hirsh 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).

  • Bulk optical elements incorporating gratings for optical communications and methods for producing
    Publication number: 20040226910
    Abstract: Methods of forming bulk optical elements, such as prisms, incorporating gratings are disclosed. Grating structures are formed by etching a uniform-thickness or generally planar substrate. Direct bonding, particularly chemical bonding, is then employed to bond the etched planar substrate to a bulk optical material without the use of adhesives or high temperature fusion.
    Type: Application
    Filed: December 29, 2003
    Publication date: November 18, 2004
    Inventors: Dilip K. Chatterjee, John F. Filhaber, John R. Marciante, Jeff Hirsh, Larry Mann, Daniel H. Raguln, Robert Sabia, Dennis W. Smith, Tony L. Whitman