The Federal Circuit expressed bewilderment on Friday regarding Arbor Global Strategies’ contention that the Patent Trial and Appeal Board (PTAB) overstepped its bounds under the Administrative Procedure Act. This issue arose when the PTAB invalidated claims related to the company’s processor module patents. The court’s puzzlement stemmed from the fact that it had previously addressed this exact question in an earlier precedential opinion. The details of this ongoing legal deliberation can be found in the Law360 article.