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ArcelorMittal Patent Claims Can't Be Axed, Fed. Circ. Told

By Michael Macagnone (November 1, 2016, 6:00 PM EDT) -- ArcelorMittal pushed a Federal Circuit panel Tuesday to put aside a district court's invalidation of two claims in a steel patent asserted against AK Steel Corp. and others, arguing the Delaware federal judge could not rule on the claims' validity because the claims were not part of the case....

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