Pregnancy Test Patent Nixed In 10-Year Fight

Law360, New York (September 5, 2008, 12:00 AM EDT) -- The U.S. Court of Appeals for the Federal Circuit has ruled invalid claims of a patent that Syntron Bioresearch Inc. was accused of infringing in a 10-year legal battle.

On Thursday, the Federal Circuit affirmed the U.S. Patent and Trademark Office's rejection of claims related to a previously approved patent. The appeal was brought bySurModics Inc., a drug-delivery-technology firm that sought to v alidate claims made in the patent.

The patent-at-issue, U.S. Patent No. 5,073,484, discloses a method of analyzing small amounts of biological fluids, such...
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