Appeal No. 1997-3122 Application No. 08/082,848 under the enablement requirement of section 112,” it is well settled that “the PTO bears an initial burden of setting forth a reasonable explanation as to why it believes that the scope of protection provided by that claim is not adequately enabled by the description of the invention provided in the specification of the application; this includes, of course, providing sufficient reasons for doubting any assertions in the specification as to the scope of enablement.” In re Wright, 999 F.2d 1557, 1561, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993). Thus, the dispositive issue here is not whether appellants have established that their disclosure is broadly enabling for the scope of the claims, or whether it is predictive or representative of in vivo results, rather, the issue is whether the PTO has met the “initial burden of setting forth a reasonable explanation as to why” it is not. Keeping this in mind, we consider the specific reasons provided by the examiner in support of her position. First, the examiner acknowledges that the claims require administration of a drug “which upon binding to an immunophilin inhibits calcineurin,” but finds that “the specification does not provide guidance in selecting those drugs other than FK-506 that would meet the functional limitations of the claims,” thus, it would “constitute undue experimentation to identify all drugs which bind to an immunophilin where the binding results in inhibiting calcineurin.” Examiner’s Answer, page 8. However, the specification 5(...continued) 7Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 NextLast modified: November 3, 2007