Ariad v. Lilly: Federal Circuit Grants En Banc Request to Challenge Written Description Requirement August 21, 2009En Banc, Enablement, Patent, Patent Cases 2009Enablement, Federal Circuit En Banc, paid, USPTO Director, Written DescriptionDennis Crouch To continue reading, become a Patently-O member. Already a member? Simply log in to access the full post. Login