The U.S. Court of Appeals for the Federal Circuit (CAFC) on Monday in a precedential opinion vacated and remanded a decision of the Patent Trial and Appeal Board (PTAB) that had found Palo Alto Networks (PAN), Inc. failed to establish certain claims of Centripetal Networks, LLC’s Communication Network patents unpatentable as obvious. The CAFC said the PTAB erred by not sufficiently explaining its reasoning with respect to its motivation to combine analysis.

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