Judge Rules In Google Ad Tech Monopoly - Partial Defeat
A judge barred Google from relitigating core antitrust facts in related New York ad-tech cases by applying issue preclusion from a prior Virginia ruling.
IPR Fact Findings Don't Bind District Courts (What about IPR Legal Conclusions?)
Issue preclusion bars relitigation of decided issues but is limited in patent litigation because IPR decisions use a preponderance standard while courts require clear-and-convincing proof.