Therasense Makes No Sense–Federal Circuit Grants En Banc Review of Inequitable Conduct
In practice, requiring patent attorneys to disclose any contradictory arguments made in any related patent application is unduly burdensome on applicants. While we certainly do not want to invite applicants to make contradictory arguments, invalidating a patent due to a contradictory attorney argument is a harsh result, particularly if there is no direct evidence of intent to deceive or if the failure to disclose would have made no difference in the examiner’s decision to allow the application. Thus, the Federal Circuit’s decision in Therasense makes no sense and should be brought in line with the realities of everyday patent prosecution by requiring proof of causation.
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