Fed. Circ. Ruling Could Extend 10-Year Patent Spat

Law360, New York (October 8, 2008, 12:00 AM EDT) -- A federal appeals court on Tuesday handed down a decision that could prolong a 10-year-old patent fight between two companies that make high-tech chemistry research and analysis products.

The appeal stems from Cohesive Technologies Inc.'s three related lawsuits accusing Waters Corp. of infringing U.S. Patent Numbers 5,772,874 and 5,919,368. The patents relate to high-performance liquid chromatography, a process frequently used in biochemistry and analytical chemistry to separate, identify and quantify compounds.

In the first action, Cohesive accused Waters in 1998 of infringing the ’874 patent. In...
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