Two IP heavy weights faced off at the Federal Circuit over Intellectual Ventures’ wireless technology patent: U.S. Patent No. 6,952,408.  Relying heavily on experts, the court overturned the PTAB’s finding in an IPR that claim 1 is not patentable.  This holding includes a complex and highly technical discussion of the technical features that is used to determine that the PTAB’s finding was unsupported.  Yet, in dissent, judge Wallace felt the court “improperly substituted its own factual findings for those of the PTAB.”  It’s a close call.  You can read the case here.  This case seems destined for additional action.  Stay tuned….