Federal Circuit Upholds Ruling That Two Wyeth Patents Are Invalid in Tagrisso Suit
A federal appeals court has affirmed a lower-court decision finding two patents challenged by AstraZeneca invalid in a dispute with Pfizer's Wyeth unit over the lung cancer drug Tagrisso. The ruling upholds the overturning of a jury award after a judge concluded the patents lacked adequate written descriptions and could not enable replication by an…