Digital Control Inc. v. Charles Machine Works — Multiple Materiality Standards Coexist for Inequitable Conduct; False Rule 131 Declarations Are Inherently Material
The Federal Circuit vacated and remanded in a horizontal directional drilling patent case, holding that the 1992 PTO Rule 56 materiality standard supplements rather than replaces the earlier ‘reasonable examiner’ standard, that false statements in a Rule 131 declaration are inherently ma