Patents by Inventor Brown Williams

Brown Williams 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).

  • Publication number: 20130065347
    Abstract: A shaped tab conductor configured to allow more incident light to strike a cell substrate, improving the photovoltaic efficiency of the cell. The shaped tab conductor is configured to reduce the amount of incident light that is blocked by the tab from reaching the surface of the cell substrate. The tab may also be configured to redirect light reflected from the cell surface back to the cell surface. The cross-section of the tab conductor may be polygonal, such as a rhombus, with at least one generally planar surface that forms an acute angle with the substrate.
    Type: Application
    Filed: November 15, 2012
    Publication date: March 14, 2013
    Applicant: Max Era, Inc.
    Inventor: Brown Williams
  • Patent number: 8334453
    Abstract: A shaped tab conductor configured to allow more incident light to strike a cell substrate, improving the photovoltaic efficiency of the cell. The shaped tab conductor is configured to reduce the amount of incident light that is blocked by the tab from reaching the surface of the cell substrate. The tab may also be configured to redirect light reflected from the cell surface back to the cell surface. The cross-section of the tab conductor may be polygonal, such as a rhombus, with at least one generally planar surface that forms an acute angle with the substrate.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: December 18, 2012
    Assignee: Evergreen Solar, Inc.
    Inventor: Brown Williams
  • Publication number: 20110023952
    Abstract: A photovoltaic cell has a semiconductor substrate formed from semiconductor material doped by a first dopant type, and a doped region over at least a portion of the substrate. The doped region is doped by a second dopant type that is opposite to that of the first dopant type to form an emitter. Moreover, the doped region is doped to a region dopant level. In addition to the substrate and emitter, the cell also has a plurality of semiconductor fingers formed on the emitter, a plurality of busbars formed from a conductor and intersecting the plurality of semiconductor fingers, and a plurality of tabs soldered to the busbars. The fingers are doped by the second dopant type to have a second dopant level, which is greater than the region dopant level.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 3, 2011
    Applicant: EVERGREEN SOLAR, INC.
    Inventors: Brown Williams, Christopher E. Dubé
  • Publication number: 20090159114
    Abstract: A photovoltaic cell has a photosensitive substrate and a plurality of fingers in ohmic contact with the substrate. At least one of the fingers has an average width of less than about 95 microns. The cell also has a plurality of busbars in ohmic contact with the fingers. At least two of the busbars that are spaced less than about 38 millimeters apart intersect the at least one finger (i.e., the finger(s) having an average width of less than about 95 microns).
    Type: Application
    Filed: December 10, 2008
    Publication date: June 25, 2009
    Applicant: EVERGREEN SOLAR, INC.
    Inventors: Brown Williams, Christopher E. Dube, Stephen Fox, Andrew Gabor, Michael A. Ralli
  • Publication number: 20090145479
    Abstract: A shaped tab conductor configured to allow more incident light to strike a cell substrate, improving the photovoltaic efficiency of the cell. The shaped tab conductor is configured to reduce the amount of incident light that is blocked by the tab from reaching the surface of the cell substrate. The tab may also be configured to redirect light reflected from the cell surface back to the cell surface. The cross-section of the tab conductor may be polygonal, such as a rhombus, with at least one generally planar surface that forms an acute angle with the substrate.
    Type: Application
    Filed: December 10, 2008
    Publication date: June 11, 2009
    Applicant: Evergreen Solar, Inc.
    Inventor: Brown Williams
  • Publication number: 20090100582
    Abstract: A blockage clearing device for unclogging a drain or toilet, the device includes an elongated cover, wherein the cover includes a first handle portion at one end, a base portion at the opposite end, and a mid portion therebetween. The device also includes a snake member, wherein the snake member includes an unclogging portion fixably attached to a cap portion that includes an adjustment handle for detachable attachment of the snake member to the cover; and, means for extending and retracting the snake member from the cover when the device is used to unclog a drain or toilet.
    Type: Application
    Filed: October 17, 2007
    Publication date: April 23, 2009
    Inventor: Judith Brown Williams
  • Publication number: 20040100581
    Abstract: A method for inserting live video broadcast into a pre-produced video is provided. A pre-produced video is first stored. An insertion point in the pre-produced video is then identified and stored. Next, a video clip from a live broadcast is saved. The video clip is then combined with the pre-produced video via the insertion point. Finally, the result of the combination is displayed. Alternatively, a feed of the live video broadcast is directly combined with the pre-produced video without having to perform the step of recording the live event.
    Type: Application
    Filed: November 27, 2002
    Publication date: May 27, 2004
    Applicant: Princeton Video Image, Inc.
    Inventor: Brown Williams