A generic company succeeded in invalidating the unregistered patent of Novartis' heart failure treatment 'Entresto'. This patent was one of the hurdles that must be overcome for the early release of generics. As such, it is analyzed that generic companies are one step closer to the release of generic for Entresto. According to the pharmaceutical industry on the 23rd, the Intellectual Property Trial and Appeals Board made a ruling on the invalidation of the Entresto salt/hydrate patent recently filed by Daewoong Pharmaceutical against Novartis. This patent is not listed in the Ministry of Food and Drug Safety patent catalog. However, from the perspective of generic companies, it was a patent that must be overcome in or