TEMPE, USA: DuPont Air Products NanoMaterials L.L.C. remains confident in its legal positions following the judge's order denying all summary judgment motions in DA NanoMaterials' patent invalidity/non-infringement lawsuit against Cabot Microelectronics currently under way in the US District Court for the District of Arizona.
The judge in the case denied summary judgment motions from both DA NanoMaterials and Cabot, including Cabot's claim that DA NanoMaterials infringed Cabot's tungsten chemical-mechanical planarization (CMP) patents. The Court has ordered the parties to submit pre-trial filings by December 16, 2009.
The denial of Cabot's summary judgment motion, coupled with a recent invalidation judgment rendered by Korean governmental authorities invalidating Cabot's tungsten CMP patent in Korea, strengthen DA NanoMaterials' position. DA NanoMaterials remains committed to its innovative and patented products.
The company looks forward to defending its products in this US lawsuit against Cabot and continuing to compete in the marketplace worldwide with its superior technology and customer service. DuPont Air Products NanoMaterials L.L.C. is a joint venture between DuPont (Electronic Technologies) and Air Products and does not release its financial results.
It was formed in 2000 and was expanded in April 2004 with the addition of the DuPont EKC Technology CMP slurry business and Air Products' addition of the CMP slurry business from the former Ashland Electronic Chemicals Division, which it acquired in 2003.
The company operates a state-of-the art applications and formulation laboratory at its headquarters in Tempe, Arizona. It manufactures products in Asia, Europe and North America to serve the global semiconductor and wafer polishing markets.
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