OTTAWA (dpa-AFX) - AK Steel Holding Corp. (AKS) said Friday that the United States Court of Appeals for the Federal Circuit has denied ArcelorMittal's (MT) petition for re-hearing in its patent infringement lawsuit involving aluminized boron steel.
The latest decision again confirms that AK Steel does not infringe the patent and can sell its ULTRALUME aluminized boron steel product.
AK Steel's ULTRALUME product is utilized for hot-stamped, press-hardened applications where the ultimate tensile strength is less than 1,500 Mpa.
AK Steel's ULTRALUME is an advanced high-strength steel that is growing in popularity for various automotive applications.
The company said that ULTRALUME has been accepted for use by numerous automotive original equipment manufacturers.
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