Hydril Co. LP v. Grant Prideco LP

This appeal challenges the district court’s dismissal, under Rule 12(b)(6) of the Federal Rules of Civil Procedure for failure to state a valid claim for relief, of a complaint alleging that the defendant (1) monopolized two product markets by enforcing a patent that had been obtained by fraud on the Patent and Trademark Office, (2) infringed a different patent that the appellant owns, and (3) breached a contract between the parties. We reverse the dismissal of the antitrust and patent claims, vacate the dismissal of the state law claim, and remand for further proceedings.

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