Presumably they have their grounds for the challenges, and the article says that each drug is covered by numerous patents, but I would be very surprised if Ozem

Presumably they have their grounds for the challenges, and the article says that each drug is covered by numerous patents, but I would be very surprised if Ozempic in particular lost ALL patent protection. Semaglutide itself seems to be a fairly revolutionary product, and reasonably different from Liraglutide (which I think predated it).