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The Importance Of I4i V. Microsoft

Law360 (December 2, 2010, 1:09 PM EST) -- On Nov. 29, 2010, the U.S. Supreme Court granted Microsoft’s petition for certiorari in the patent infringement case i4i LP v. Microsoft Corp. The outcome of this case could potentially affect the strength and value of all issued U.S. patents. Affirming the trial court decision, the Court of Appeals for the Federal Circuit upheld the established standard of proof for invalidity challenges and denied a rehearing en banc.

At trial Microsoft sought a jury instruction that the burden of proof for invalidity based on prior art...
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