Patents Assigned to World Sports Challenge, Ltd.
  • Patent number: 8585495
    Abstract: A parlay-based tournament playable by a plurality of players is provided. The tournament includes a plurality of successive games. Each game has a ticket pool and a plurality of results.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: November 19, 2013
    Assignee: World Sports Challenge, Ltd.
    Inventors: David E. Rosenau, Leonid M. Bass
  • Publication number: 20130072277
    Abstract: A parlay-based tournament playable by a plurality of players is provided. The tournament includes a plurality of successive games. Each game has a ticket pool and a plurality of results.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 21, 2013
    Applicant: WORLD SPORTS CHALLENGE LTD.
    Inventors: David E. ROSENAU, Leonid M. BASS
  • Patent number: 8272950
    Abstract: A parlay-based tournament playable by a plurality of players is provided. The tournament includes a plurality of successive games. Each game has a ticket pool and a plurality of results.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: September 25, 2012
    Assignee: World Sports Challenge, Ltd.
    Inventors: David E. Rosenau, Leonid M. Bass
  • Publication number: 20090005175
    Abstract: A parlay-based tournament playable by a plurality of players is provided. The tournament includes a plurality of successive games. Each game has a ticket pool and a plurality of results.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Applicant: WORLD SPORTS CHALLENGE LTD.
    Inventors: David E. Rosenau, Leonid M. Bass