Patents by Inventor William Barnwell

William Barnwell 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: 7854431
    Abstract: A table bingo game. The table bingo game is played by one to n players and makes use of a table having a table surface and a table grid marked out on the table surface. The table grid comprises m rows and n columns to provide an m by n matrix defining a rectangular array of preselected numbers therein. Each number in the m by n matrix has an integer value between 1 and y. A deck of bingo cards is provided having integer numbers printed thereon. A set of n player cards is provided each having a player grid printed thereon with four corner numbers. For each set of four corner numbers there is a column in the table grid having four matching numbers. The winner is the player with a player card that matches a column on the grid four matching bingo cards laid out thereon.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: December 21, 2010
    Inventor: William Barnwell
  • Publication number: 20050051500
    Abstract: The present invention provides a method of beneficiating slag, including mixing the slag with water to form a slurry. The slurry is screened through a first screen to remove a first portion of material and then screened through a second screen to remove a second portion of material. In one embodiment, the second portion of material has a carbon content less than about 5% and, more preferably, a carbon content less than about 1%.
    Type: Application
    Filed: September 8, 2003
    Publication date: March 10, 2005
    Inventors: Charles Price, William Barnwell, John Groppo
  • Patent number: D637659
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: May 10, 2011
    Inventor: William Barnwell