FRANCE 24 | India board revokes Roche hepatitis patent FRANCE 24 The Intellectual Property Appellate Board overturned the patent awarded by the Indian Patent Office to Hoffmann-La Roche's drug Pegasys used to treat hepatitis C -- a disease that can lead to fatal liver problems. While Roche can still challenge the ... Roche's Hepatitis C drug patent revoked Roche patent on hepatitis C drug nixed IPAB sets aside Indian patent for Roche's Hepatitis C drug |