While the validity of Allergan's controversial deal with the Saint Regis tribe won't be decided by the Patent Trial and Appeal Board (PTAB) until April 2018, a number of law firms are already shopping similar arrangements to clients, including tribes and public universities, and at least 20 to 30 companies are already penning such deals, an intellectual property expert tells Inside Health Policy . Facing the prospect of the controversial tribe scheme spreading, critics are urging swift congressional action while...