BRIEF-Barr Labs did not infringe two Alcon patents, but patent claims are not invalid -- US appeals court

March 18 Tue Mar 18, 2014 11:33am EDT

March 18 (Reuters) - * U.S. appeals court upholds finding that barr laboratories

did not infringe two alcon research patents, but reverses finding that

alcon's claims were invalid -- court ruling * Federal circuit court of appeals rules in case concerning alcon patents that

relate to glaucoma and ocular hypertension drug travatan z * Federal circuit denies barr's request that it also find no infringement of

two other alcon patents

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