Patents by Inventor Joel B. Hurewitz

Joel B. Hurewitz 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).

  • Ballot system and method adapted for optical scanning
    Patent number: 7021539
    Abstract: A ballot system including a printed ballot wherein the locations intended for marking voter choices are pre-treated with invisible ink, the remainder of the ballot being untreated; a marking pen containing an activating chemical which makes the invisible ink change to visible and produce permanent marks; and an optical scanning system which detects and tallies the marks made visible by the activation.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: April 4, 2006
    Inventor: Joel B. Hurewitz
  • Ballot system and method adapted for optical scanning
    Publication number: 20040195322
    Abstract: A ballot system including a printed ballot wherein the locations intended for marking voter choices are pre-treated with invisible ink, the remainder of the ballot being untreated; a marking pen containing an activating chemical which makes the invisible ink change to visible and produce permanent marks; and an optical scanning system which detects and tallies the marks made visible by the activation.
    Type: Application
    Filed: February 7, 2003
    Publication date: October 7, 2004
    Inventor: Joel B. Hurewitz