Patents by Inventor Douglas Warren Hall

Douglas Warren Hall 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).

  • Solar heat collection element with glass-ceramic central tube
    Patent number: 8683994
    Abstract: A solar heat collection element includes: a central tube (102) formed from glass-ceramic material; and an outer tube (104) formed from glass material disposed coaxially with respect to the central tube (102) to form a volume therebetween (106).
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: April 1, 2014
    Assignee: Corning Incorporated
    Inventors: Robert Alan Bellman, William Joseph Bouton, Douglas Warren Hall, Karen Irene Matthews, Ljerka Ukrainczyk
  • TEXTURED SUPERSTRATES FOR PHOTOVOLTAICS
    Publication number: 20110126890
    Abstract: Textured superstrates for photovoltaic cells, for example, silicon tandem photovoltaic cells with light scattering properties which are sufficient for light trapping independent of wavelength are described herein. Features of a textured surface of a superstrate, via the method(s) used to make the textured superstrate, can be tailored to provide the desired light scattering/trapping properties. The method includes grinding and lapping or grinding, lapping, and etching of a glass superstrate.
    Type: Application
    Filed: November 29, 2010
    Publication date: June 2, 2011
    Inventors: Nicholas Francis Borrelli, Douglas Warren Hall, Glenn Eric Kohnke, Sasha Marjanovic
  • SUBSTRATES FOR PHOTOVOLTAICS
    Publication number: 20110017287
    Abstract: Light scattering substrates, superstrates, and/or layers for photovoltaic cells are described herein. Such structures can be used for volumetric scattering in thin film photovoltaic cells.
    Type: Application
    Filed: March 24, 2009
    Publication date: January 27, 2011
    Inventors: Nicholas Francis Borrelli, Douglas Warren Hall, Glenn Eric Kohnke, Alexandre Michel Mayolet
  • SOLAR HEAT COLLECTION ELEMENT WITH GLASS-CERAMIC CENTRAL TUBE
    Publication number: 20100313877
    Abstract: A solar heat collection element includes: a central tube (102) formed from glass-ceramic material; and an outer tube (104) formed from glass material disposed coaxially with respect to the central tube (102) to form a volume therebetween (106).
    Type: Application
    Filed: February 17, 2009
    Publication date: December 16, 2010
    Inventors: Robert Alan Bellman, William Joseph Bouton, Douglas Warren Hall, Karen Irene Matthews, Ljerka Ukrainczyk
  • Device and method to supress Q-switching in an optical amplifying device
    Patent number: 5801879
    Abstract: An improved four-port dichroic WDM, for use in a multiwavelength, bi-directional optical amplifier, having a dichroic filter for substantially reflecting a first wavelength band input to the WDM to an output of the WDM for the first wavelength band and for substantially transmitting a second wavelength band input to the WDM to an output of the WDM for the second wavelength band, in which some of a first 3 dB wavelength in the first wavelength band is transmitted by the filter and some of a second 3 dB wavelength in the second wavelength band is reflected by the filter, includes another dichroic filter having a filter function different than the filter function of the WDM filter providing an insertion loss for the first or the second 3 dB wavelengths sufficient to reflect and transmit, respectively, substantially all of the first and second 3 dB wavelengths.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: September 1, 1998
    Assignee: Corning Incorporated
    Inventors: Clement Dowd Burton, Douglas Warren Hall