Cabot Microelectronics Corp. (CCMP) said that the United States District Court for the District of Arizona unsealed in redacted form its ruling on summary judgment motions, pending in Cabot Microelectronics' ongoing patent infringement litigation against DuPont Air Products NanoMaterials LLC.
Cabot believes that the recently issued Summary Judgment Order supports Cabot's position on the merits of the case.
In the summary judgment order, the Court rejected DuPont Air Products NanoMaterials' primary validity attack on Cabot Microelectronics' tungsten CMP patents at issue in the case, holding that DuPont Air Products NanoMaterials' arguments with respect to one of the patents "does not invalidate [Cabot Microelectronics'] patent" and with respect to another "is insufficient as a matter of law."
The Court also allowed Cabot to obtain additional damages and certain other discovery, and in light of this also extended from December 16, 2009 to January 15, 2010 the date by which the parties are to submit pretrial filings.
For comments and feedback contact: editorial@rttnews.com
June 12, 2026 17:14 ET Major central bank action was the focus this week in economic news. The European Central Bank became the first major central bank to move in response to the rising inflationary pressures in the backdrop of the conflict in the Middle East. In North America, the U.S. inflation and trade data as well as Canada’s central bank decision gained attention. The Chinese trade data was the main news in Asia.