Federal Circuit Affirms PTAB Estoppel Rule, Clarifies Limitations in Apple-Motorola Case

On Friday, the Federal Circuit upheld a rule set by the U.S. Patent and Trademark Office that allows Patent Trial and Appeal Board (PTAB) decisions to invalidate patent claims in subsequent office proceedings. The court, however, clarified the scope of this rule in a notable case involving technology giants Apple and Motorola, stating that it does not extend to issued claims. The decision adds a nuanced layer to the PTAB’s estoppel application, potentially affecting future patent litigations and proceedings. For detailed coverage, visit the Law360 article.