Novartis has filed a patent lawsuit against Regeneron seeking damages for sales of Eylea® and Zaltrap®. On March 19, 2018, Novartis sued Regeneron in the Southern District of New York, White Plains Division, for infringing U.S. Patent No. 5,688,688. The ‘688 patent claims gene expression constructs for the expression of polypeptides in mammalian cells. How strong is Novartis’ case, and what is Regeneron’s exposure?
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