Patents by Inventor Joseph E McCarthy

Joseph E McCarthy 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).

  • Patent number: 7313312
    Abstract: According to one example of the invention an optical fiber comprises: (i) silica based, rare earth doped core having a first index of refraction n1; (ii) at least one silica based cladding surrounding the core and having a second index of refraction n2, such that n1>n2; wherein at least one of the core or cladding is doped with Al2O3, such that the ratio of max wt % to min wt % of Al2O3 concentration is less than 2:1.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: December 25, 2007
    Assignee: Corning Incorporated
    Inventors: Ronald L. Kimball, Robert A Knowlton, Joseph E McCarthy, Ji Wang, Donnell T. Walton, Luis A. Zenteno
  • Patent number: RE44288
    Abstract: According to one example of the invention an optical fiber comprises: (i) silica based, rare earth doped core having a first index of refraction n1; (ii) at least one silica based cladding surrounding the core and having a second index of refraction n2, such that n1>n2; wherein at least one of the core or cladding is doped with Al2O3, such that the ratio of max wt % to min wt % of Al2O3 concentration is less than 2:1.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: June 11, 2013
    Assignee: Corning Incorporated
    Inventors: Ronald L. Kimball, Robert A. Knowlton, Joseph E. McCarthy, Ji Wang, Donnell T. Walton, Luis A. Zenteno