Patents by Inventor David E. Rosenau

David E. Rosenau 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: 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