MKS Asserts Patent Issued On Tuesday

Law360, New York (September 10, 2008, 12:00 AM EDT) -- MKS Instruments Inc., which makes processing control instruments for the semiconductor manufacturing industry, has lodged a suit against Celerity Inc., alleging that Celerity's flow controllers infringe three MKS Instruments patents, one of which was issued on Tuesday.

MKS Instruments filed an amended complaint against Celerity on Tuesday in the U.S. District Court for the Eastern District of Texas, the same day the U.S. Patent and Trademark Office issued U.S. Patent Number 7,424,346.

MKS filed its first complaint in the same court on Monday, asserting two patents...
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