U.S. Appeals Court Revives Patent Fight Over AstraZeneca PLC Drug

A U.S. appeals court on Wednesday reinstated part of a legal fight by AstraZeneca over a patent protecting its Pulmicort Respules asthma drug, months after the court temporarily halted competitors from distributing generic versions. The ruling from the U.S. Court of Appeals for the Federal Circuit reverses an earlier decision that generic drugmakers -including Apotex Inc, Sandoz Inc and Watson Laboratories Inc -had not infringed an AstraZeneca patent relating to the drug. The court left intact a finding that another AstraZeneca patent related to the drug was invalid.

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