PTAB Denies Cumulative Prior Art: Implications for Patent Litigation Strategy
Recently, in a case involving Sandoz Inc. vs Acerta Pharma B.V. (IPR2023-00478), the Patent Trial and Appeal Board (“PTAB”) found itself denying IPR institution where the asserted prior art was labelled as cumulative of that considered during prosecution. This ruling is drawing attention from legal professionals and corporations alike, in light of its precedent-setting nature….