Federal Circuit vacates PTAB decision for failure to explain reason claims were invalid
Unlike the Board’s anticipation determinations, which contravened the only permissible findings that could be drawn from the prior art under the proper constructions of the relevant claim terms, the obviousness determinations involved “potentially lawful but insufficiently or inappropriately explained” factual findings. In re Van Os, 844 F.3d 1359, 1362 (Fed. Cir. 2017). The Board failed to explain its reasoning to allow the Court to determine whether its findings would be lawful. When faced with similarly deficient factual findings, the Court has “consistently vacated and remanded for further proceedings.” Id. Consequently, the Court vacated the Board’s obviousness rejections with respect to claims 1-3, 5-8, and 21, and remanded for further factual findings and explanation on this issue.