Jury Weighs ArcelorMittal Patent Suit Against Rivals

Law360, New York (January 14, 2011, 8:27 PM EST) -- A jury began deliberations Friday in steel giant ArcelorMittal's suit accusing three U.S. rivals of infringing its patent for making aluminum-coated steel sheets used in automobile frames.

Attorneys for the company made their closing argument in the U.S. District Court for the District of Delaware, saying the defendants — AK Steel Corp., Severstal Dearborn Inc. and Wheeling-Nisshin Inc. — knowingly set out to copy its process without striving for any kind of improvement.

“A patent is not meant for competitors to come in and read it...
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