In SynQor, Inc. v. Vicor Corp., Case No. 19-1704 (Fed. Cir. Feb. 22, 2021), the Federal Circuit vacated the inter partes reexamination decision from the Patent Trial and Appeal Board (the “Board”).  As part of the decision, the court held that collateral estoppel (issue preclusion) can apply where the Board’s prior determinations involving different…