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Sanofi and Regeneron seek DJ (non-infringement) against Amgen patent

Mar 20, 2017

Sanofi-Aventis, Genzyme Corporation and Regeneron filed a complaint in the District Court of Massachusetts seeking a declaration judgement that its development, manufacturing, sale, promotion and related activities for Dupixent® (dupilumab) do/will not directly or indirectly infringe Amgen’s US patent 8,679,487.