Patents by Inventor Richard F. Sorensen

Richard F. Sorensen 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).

  • Optically transparent, electrically conductive semiconductor windows
    Patent number: 6121103
    Abstract: A semiconductor window which is transparent to light in the infrared range and which has good electrical conductivity is formed of a prefabricated semiconductor sheet bonded to a substrate material by optical contact. The sheet is a substantially uniformly doped wafer sufficiently thin that inherent absorption bands do not affect transmission. The sheet is contact bonded to the surface of an undoped transparent substrate without diffusion, growth or deposition on the surface. Windows having particular optical band pass characteristics are formed utilizing a zinc selenide substrate and a gallium arsenide sheet.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: September 19, 2000
    Assignee: Northrop Grumman Corporation
    Inventors: John W. Tully, Don L. McCoy, Richard F. Sorensen
  • Optically transparent, electrically conductive semiconductor windows
    Patent number: 5824418
    Abstract: A semiconductor window which is transparent to light in the infrared range and which has good electrical conductivity is formed of a prefabricated semiconductor sheet bonded to a substrate material by optical contact. The sheet is a substantially uniformly doped wafer sufficiently thin that inherent absorption bands do not affect transmission. The sheet is contact bonded to the surface of an undoped transparent substrate without diffusion, growth or deposition on the surface. Windows having particular optical band pass characteristics are formed utilizing a zinc selenide substrate and a gallium arsenide sheet.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: October 20, 1998
    Assignee: Northrop Grumman Corporation
    Inventors: John W. Tully, Don L. McCoy, Richard F. Sorensen