jlindy writes: PJ over at Groklaw informs us that IP Innovation LLC has just filed a patent infringement claim against Red Hat and Novell. Plaintiffs IP Innovation and Technology Licensing Corp. claim to have the rights to U.S. Patent No. 5,072,412 for a User Interface with Multiple Workspaces for Sharing Display System Objects issued Dec. 10, 1991 along with two other similar patents.
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