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Press release

ASML denies Nikon's allegations of patent infringement

Asserts Nikon's patents are invalid

Veldhoven, the Netherlands, February 26, 2002

ASML's President and CEO Doug Dunn said: "Nikon had filed its ITC complaint with no notice to ASML. We've now had an opportunity to review the patents and the claimed infringement. ASML has concluded that Nikon's patents are both invalid and not infringed."


Nikon had also filed a Federal District Court case in the Northern District of California in San Jose alleging four patent infringements against ASML on December 21, 2001, a suit that was also commenced with no notice of any patent claim by Nikon.


"Although our answer to the complaint filed in San Jose is not due until March 26, 2002, we have reviewed the patents involved in that case and we have similarly concluded that Nikon's patents are invalid and not infringed," Doug Dunn added.


ASML's answer specifying its response will be filed in Federal District Court in San Jose on or before March 26.

About ASML


ASML is one of the world's leading providers of advanced technology systems for the semiconductor industry. The company offers an integrated portfolio of lithography, track and thermal systems mainly for manufacturing complex integrated circuits. Headquartered in Veldhoven, the Netherlands, ASML is traded on Euronext Amsterdam and Nasdaq under the symbol 'ASML'. In 2001, the company reported net sales of over €1.8 billion. ASML employs approximately 7,000 people in 50 locations throughout the world.

Contact information

  • Brittney Wolff
  • Corporate communications manager US
  • +14084833207