Flags with the Novo Nordisk logo flutter outside their Danish company's offices in Copenhagen, Denmark, September 26, 2023. The office's Patent Trial and Appeal Board denied the requests by Mylan Pharmaceuticals, which is owned by Viatris (VTRS.O), to review the validity of the Wegovy and Ozempic patents. A spokesperson for Novo Nordisk said the company will "vigorously defend" its intellectual property. Novo has filed several U.S. patent lawsuits against companies including Pennsylvania-based Viatris that are seeking to market generic versions of the drugs. Viatris has separately asked a West Virginia federal court to invalidate the patents as part of the litigation.

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Persons: Tom Little, Wegovy, Ozempic, Mylan, Viatris, Novo's Wegovy, Novo, Blake Brittain, Patrick Wingrove, Will Dunham, David Bario Organizations: Novo Nordisk, Danish, REUTERS, Rights, U.S . Patent, Mylan Pharmaceuticals, Viatris, West, Thomson Locations: Copenhagen, Denmark, Pennsylvania, West Virginia, Washington, New York