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inter partes reexamination

Estoppel, or Lack Thereof, in Inter Partes Reexaminations

The Federal Circuit recently clarified the scope of estoppel for inter partes reexaminations, ruling in a pair of decisions that a district-court decision only estops arguments against individual claims of a patent and that a dismissal without prejudice does not estop the reexamination. In re Affinity Labs of Texas, 2016-1092, -1172, -1173 (Fed. Cir. May 5, 2017). Affinity Labs sued...

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