Patents by Inventor Douglas C. Hague

Douglas C. Hague 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).

  • Reflective coatings to reduce radiation heat transfer
    Patent number: 6887587
    Abstract: The present invention relates to a method for forming an article having a protective ceramic coating which reduces radiation heat transport through the ceramic coating. The protective ceramic coating includes one or more embedded reflective metallic layers for reducing the radiation heat transport. The method for forming the protective coating broadly comprises the steps of forming a ceramic coating on a substrate and embedding at least one reflective metallic layer within the ceramic coating.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: May 3, 2005
    Assignee: United Technologies Corporation
    Inventors: William P. Allen, William A. Veronesi, Robert J. Hall, Michael J. Maloney, John W. Appleby, Douglas C. Hague, Abdus Khan
  • REFLECTIVE COATINGS TO REDUCE RADIATION HEAT TRANSFER
    Publication number: 20040258946
    Abstract: The present invention relates to a method for forming an article having a protective ceramic coating which reduces radiation heat transport through the ceramic coating. The protective ceramic coating includes one or more embedded reflective metallic layers for reducing the radiation heat transport. The method for forming the protective coating broadly comprises the steps of forming a ceramic coating on a substrate and embedding at least one reflective metallic layer within the ceramic coating.
    Type: Application
    Filed: June 10, 2003
    Publication date: December 23, 2004
    Inventors: William P. Allen, William A. Veronesi, Robert J. Hall, Michael J. Maloney, John W. Appleby, Douglas C. Hague, Abdus S. Khan
  • Identifying a polarization-mode dispersion event
    Patent number: 6781679
    Abstract: A system identifies a polarization-mode dispersion (PMD) event in an optical fiber by determining error conditions in proximate wavelengths. The system includes an optical interface and a PMD identification system. The optical interface receives an optical signal from the optical fiber wherein the optical signal is wavelength division multiplexed with a plurality of wavelengths. The PMD identification system determines whether a first error condition exists in a first one of the wavelengths of the optical signal. The PMD identification system also determines whether a second error condition exists in a second one of the wavelengths of the optical signal wherein the second one of the wavelengths is proximate to the first one of the wavelengths. The PMD identification system also determines whether an acceptable condition exists in a third one of the wavelengths of the optical signal that is not proximate to the first one and the second one of the wavelengths of the optical signal.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: August 24, 2004
    Assignee: Sprint Communications Company, L.P.
    Inventors: Douglas Lew Richards, Christopher Thomas Allen, Douglas C. Hague
  • Reflective coatings to reduce radiation heat transfer
    Patent number: 6652987
    Abstract: The present invention relates to a method for forming an article having a protective ceramic coating which reduces radiation heat transport through the ceramic coating. The protective ceramic coating includes one or more embedded reflective metallic layers for reducing the radiation heat transport. The method for forming the protective coating broadly comprises the steps of forming a ceramic coating on a substrate and embedding at least one reflective metallic layer within the ceramic coating.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: November 25, 2003
    Assignee: United Technologies Corporation
    Inventors: William P. Allen, William A. Veronesi, Robert J. Hall, Michael J. Maloney, John W. Appleby, Douglas C. Hague, Abdus Khan
  • Reflective coatings to reduce radiation heat transfer
    Publication number: 20030008170
    Abstract: The present invention relates to a method for forming an article having a protective ceramic coating which reduces radiation heat transport through the ceramic coating. The protective ceramic coating includes one or more embedded reflective metallic layers for reducing the radiation heat transport. The method for forming the protective coating broadly comprises the steps of forming a ceramic coating on a substrate and embedding at least one reflective metallic layer within the ceramic coating.
    Type: Application
    Filed: July 6, 2001
    Publication date: January 9, 2003
    Inventors: William P. Allen, William A. Veronesi, Robert J. Hall, Michael J. Maloney, John W. Appleby, Douglas C. Hague, Abdus S. Khan