Written by: Mark Terry What happens when you only disclose a larger range of values in the specification and later amend the claims to recite a smaller range of values encompassed by the larger range? Do you run into a 112 written description problem? That was the issue in today’s Ex Parte Moraes Barros (BPAI 2010-006399) decision at the Board of Patent Appeals and Interferences (BPAI) where a Patent Examiner was reversed. As a Florida Patent Attorney, I stay updated on the latest decisions of the BPAI, so as to provide my clients with the best representation on appeal. In the Moraes Barros case, the