FRANCE 24 | India Revokes Roche Patent Wall Street Journal BANGALORE—In the latest blow to multinational drug companies, a government board in India has revoked the patent of Roche Holding AG's expensive drug for an infectious liver disease. The decision Friday by the Intellectual Property Appellate Board to ... India board revokes Roche hepatitis patent Roche's Hepatitis C drug patent revoked Roche patent on hepatitis C drug nixed |