- Must Plead Inequitable Conduct With Specificity: To meet the requirements of Rule 9(b), “the pleading must identify the specific who, what, when, where, and how of the material misrepresentation or omission committed before the PTO” and must “include sufficient allegations of underlying facts from which a court may reasonably infer that a specific individual (1) knew of the withheld material information or of the falsity of the material misrepresentation, and (2) withheld or misrepresented this information with a specific intent to deceive the PTO.” Exergen (Fed. Cir. 08/04/09).