FDA Commissioner Robert Califf told lawmakers removing frivolous patents from the FDA-administered Orange Book is the responsibility of the Federal Trade Commission (FTC), but he also offered to work with Congress to tighten up patent oversight. The issue came up at a Thursday (April 11) hearing by the House Committee on Oversight and Accountability, where Califf was grilled on numerous topics, including Orange Book enforcement. Rep. Ro Khanna (D-CA) raised the concern of frivolous patents and pointed to Teva Pharmaceuticals...