Tagged: NJ Patent Rules

Plaintiffs’ Local Patent Rule 3.2(b) Document Production Sufficient to Support an “Invention Date” Predating a Disclosed “Priority Date”

Applying the plain language of the District of New Jersey’s Local Patent Rules, Chief Judge Wolfson recently ruled in Mitsubishi Tanabe Pharma Corp. v. Sandoz Inc., that the plaintiffs were not precluded from asserting an “invention date” derived from their Local Patent Rule 3.2(b) disclosures that differed from the “priority date” expressly disclosed in their Local Patent Rule 3.1(f) contention disclosures. Local Patent Rule 3.1(f) requires that infringement contentions disclose, “[f]or any patent that claims priority to an earlier application, the priority date to which asserted claim is allegedly entitled.” Local Patent Rule 3.2 governs the document production that must accompany Local Patent Rule 3.1 disclosures and Local Patent Rule 3.2(b) requires the production of “[a]ll documents evidencing the conception, reduction to practice, design, and development of each claimed invention, which were created on or before the date of application for the patent in suit or the priority date identified pursuant to L. Pat. R. 3.1(f), whichever is earlier.” An “invention date” and a “priority date” have distinct meanings in patent law. An “invention date” is the date when the inventor conceived the invention and reduced it to practice and the “priority date” is the filing date of the earliest patent application to which the patents-in-suit are entitled. The plaintiffs’ Local Patent Rule 3.1(f) infringement...

NJ District Courts Bar Defendants’ Indefiniteness Argument During Claim Construction Because Not Alleged in Invalidity Contentions

We previously reported that New Jersey District Court Judges will limit a patent infringement defendant’s discovery to the claims and defenses identified in its Invalidity Contentions served under Local Patent Rule 3.3. For the same reasons, a defendant may be barred from taking certain positions during claim construction. In an opinion issued last week, Judge Jose L. Linares held in Auxilium Pharmaceuticals, Inc. & FCB I LLC v. Watson Laboratories, Inc., No. 12-3084 (JLL) that a defendant that does “not raise an indefiniteness defense in its invalidity contentions . . . cannot seek a determination that the patents-at-issue are invalid for indefiniteness through claim construction.”