Arizona
How Blonder-Tongue Laboratories, Inc. v. University of Illinois Foundation applies in Arizona: state-specific rules, key cases, and bar exam notes for Civil Procedure (Collateral Estoppel/Issue Preclusion) and Patent Law.
Arizona courts recognize the doctrine of collateral estoppel and its application in patent law, following similar principles found in Blonder-Tongue Laboratories, Inc. v. University of Illinois Foundation. Specifically, Arizona requires that the issue precluded be the same as that previously litigated, and that the party against whom preclusion is asserted had a full and fair opportunity to litigate the issue.
Arizona applies a four-part test for issue preclusion: (1) the issue was decided in a previous case, (2) the issue was essential to the prior judgment, (3) the parties were identical or in privity, and (4) the party against whom preclusion is asserted had a full and fair opportunity to litigate the issue.
Collateral estoppel was applied to prevent relitigation of issues that were already decided in an earlier case involving similar parties.
The court emphasized the importance of a full and fair opportunity to litigate in determining the application of issue preclusion.
The Arizona Supreme Court confirmed that issue preclusion applies when the earlier judgment was not appealed and thus became final.
Arizona's approach to collateral estoppel is generally aligned with the federal standard set forth by the Supreme Court in Blonder-Tongue, emphasizing the necessity for identical parties and an opportunity for meaningful litigation. However, Arizona may apply slightly more stringent requirements in ensuring that the litigant had a full and fair chance to present their case.
Collateral estoppel and issue preclusion are commonly tested topics on the Arizona bar exam, especially in the context of patent law and its intersection with civil procedure.