U.S. District Judge Denise J. Casper has established a schedule for upcoming hearings and other case deadlines in Worlds Inc. (WDDD) vs. Activision Blizzard (ATVI)., Blizzard Entertainment, Inc. and Activision Publishing, Inc.in Civil Action No, 1:12-CV-10576DJC, a patent infringement lawsuit filed by Worlds Inc. on March 30, 2012 in the U.S District Court for the District of Massachusetts. The patent claim construction hearing, also called a Markman hearing, is set for June 27, 2013, at which time the judge will be asked to issue rulings regarding the language and interpretation of the Worlds patents at issue in the case. Markman hearings are considered a critical event in a patent lawsuit. The Markman ruling will define the property rights for the technologies that Worlds has invented and has the right to exclusively practice. The court's Markman hearing decisions will drive and inform many aspects of the litigation.