Praxair Cleared By Federal Circuit In Chip Suit

Law360, New York (April 23, 2007, 12:00 AM EDT) -- A federal appeals court has ruled that two patents for semiconductor technology asserted against Praxair Inc. are invalid, clearing the western hemisphere’s top industrial gas producer of infringement charges.

The April 19 decision from the U.S. Court of Appeals for the Federal Circuit affirmed a lower court ruling that patents asserted by Advanced Technology Materials Inc. were invalid because they were obvious.

The Danbury, Conn.-based rivals have been battling over the patents since July 2003, when ATMI filed suit in the U.S. District Court for the...
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