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:
Prior Art
Publications Published Prior to March 25, 1987
February 13th, 2009
This patent application claims priority to March 25, 1987. Publications can include any form of printed or electronic publication that discusses one or more elements of the claim of the patent.
Products On Sale, Offered for Sale or Publicly Used Prior to March 25, 1987
February 13th, 2009
This patent application claims priority to March 25, 1987. Such prior art may include products embodying the invention that were sold, offered for sale, or publicly used by the patent holder, an inventor, or any third party prior to March 25, 1987.
Information that this Process was Public Knowledge or Publicy used Prior to March 25, 1987
February 13th, 2009
This patent application claims priority to March 25, 1987. Such prior art may include processes embodying the invention that were in the public domain or publicly used by the patent holder, an inventor, or any third party prior to March 25, 1987.
Patents and Published Patent Applications Filed in the U.S. Prior to March 25, 1987
February 13th, 2009
This patent application claims priority to 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.
Knowledgeable Persons
February 13th, 2009
Often times one of the best means of identifying prior art is to contact persons involved with the development of this invention or persons involved with the development of inventions cited as prior art in the patent application (click on Read the Patent, find the Citations section of patents and other prior art, click on one of those items, and find the named inventor or author).
