Article: Cabot Microelectronics Corporation Receives Ruling in Markman Hearing in Patent Infringement Enforcement Action against DuPont Air Products NanoMaterials, LLC.

AURORA, Ill. -- Cabot Microelectronics Corporation (Nasdaq: CCMP), the world's leading supplier of chemical mechanical planarization (CMP) polishing slurries to the semiconductor industry, today announced that on July 25, 2008, the United States District Court for the District of Arizona issued its patent claim construction, or "Markman" Order ("Markman Order") in Cabot Microelectronics' ongoing patent infringement litigation against DuPont Air Products NanoMaterials, LLC ("DA Nano").

In a Markman ruling, a district court hearing a patent infringement case interprets and rules on the scope and meaning of disputed patent claim language regarding the patents in ...

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