Question juridique clé
Whether the court expert lacked sufficient technical knowledge and a new expert opinion was required
Solution extraite
No. The expert's knowledge was adequate for the technical questions at issue, which concerned powder-output control in a coating system rather than can interior coating techniques.
Motifs extraits
The court held that expert qualifications depend on the technical questions in dispute. The patent problem did not require specific expertise in can coating, and the existing expert report was understandable, plausible, and did not raise doubts requiring further investigation.