IP Innovation L.L.C. and Technology Licensing Corporation (collectively, "Plaintiffs") have brought a patent-infringement action against Red Hat, Inc., and Novell, Inc., alleging infringement of U.S. Patent Numbers 5,072,412; 5,533,183; and 5,394,521. The patents concern a user interface that has multiple workspaces. The Plaintiffs' complaint identifies as accused products "Red Hat Linux system," the "Novell Suse Linux Enterprise Desktop," and the "Novell Suse Linux Enterprise Server."
UPDATE: THESE THREE PATENTS WERE INVALIDATED BY THE U.S. DISTRICT COURT, EASTERN DISTRICT OF TEXAS, ON APRIL 30, 2010, IN THE ABOVE REFERENCED ACTION.
UPDATE: THESE THREE PATENTS WERE INVALIDATED BY THE U.S. DISTRICT COURT, EASTERN DISTRICT OF TEXAS, ON APRIL 30, 2010, IN THE ABOVE REFERENCED ACTION.
WHAT'S NEEDED: REQUEST FOR INFORMATION
Prior Art
Patents and Published Patent Applications Filed in the U.S. Prior to March 25, 1987
February 13th, 2009
This patent application was filed on March 25, 1987. Such prior art may include patents issued before March 25, 1987, and/or published patent applications that were filed in the U.S. prior to March 25, 1987.
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