NJ District Courts Continue to Enforce the Disclosure Requirements Regarding Contentions Pursuant to New Jersey’s Local Patent Rules

We previously reported in February 2014 and June 2014 that New Jersey District Court Judges will enforce the District of New Jersey’s Local Patent Rules’ contention disclosure requirements and bar parties from making arguments that were not properly disclosed in their contentions. Consistent with those rulings, in a recent opinion, in Impax Labs., Inc. v. Actavis Labs FL, Inc., Judge Chesler barred one of Actavis’s infringement arguments made during summary judgment as untimely because the argument was not sufficiently disclosed in its infringement contentions. In its opposition brief, Impax argued that Actavis raised new non-infringement arguments based on the pharmacokinetic profiles of its proposed generic product. Actavis claimed that its generic product did not meet claim limitations involving a “maximum concentration” limitation or a “40% fluctuation” limitation for two subsets of asserted claims. Upon review of Actavis’s contentions, the court found that Actavis did sufficiently disclose its non-infringement argument in regard to the “maximum concentration” limitation, but that it did not sufficiently disclose its non-infringement argument regarding the “40% fluctuation” limitation. The court found that Actavis’s non-infringement contentions regarding the “40% fluctuation” limitation stated that “there is no evidence that its products ‘result in a levodopa plasma concentration’ meeting the 40%...