News & Analysis as of

Patent Applications Double Patent Obviousness-Type Double Patenting (ODP)

Sheppard Mullin Richter & Hampton LLP

Federal Circuit Emphasizes Role of Filing Dates, Reversing Obviousness-Type Double Patenting Invalidation

In Allergan USA, Inc. v. MSN Laboratories Private Ltd., No. 2024-1061 (Fed. Cir. August 13, 2024), the Federal Circuit reversed the District Court of Delaware’s invalidity determination of certain claims of U.S. Patent No....more

Jones Day

Supreme Court Denies Cellect Petition on Interplay Between PTA and ODP

Jones Day on

The Supreme Court denies Cellect LLC's petition for certiorari to consider whether patent term adjustment ("PTA") should be included in patent term for obviousness-type double patenting ("ODP") purposes....more

Mintz - Intellectual Property Viewpoints

A Continuation Application is an Implicit Admission of Obviousness-Type Double Patenting When Filed from a Parent Patent

Filing a continuation application from a parent patent is an implicit admission that obviousness-type double patenting (ODP) applies to the resulting continuation patent. A Terminal Disclaimer in the continuation patent over...more

McDermott Will & Emery

Same Applicant, Similar Claims Support Obviousness-Type Double Patenting Rejection

The US Court of Appeals for the Federal Circuit affirmed a Patent Trial & Appeal Board obviousness-type double patenting rejection, finding that an unexpected mechanism of action does not render the known use of a known...more

Katten Muchin Rosenman LLP

Whether Obviousness Type Double Patenting Can Be Used to Invalidate Patents That Expire Later Because of Patent Term Adjustment

We write to advise you on an issue currently before the Federal Circuit in a case of first impression, namely whether a later-filed, earlier-expiring patent can be used as a reference for obvious-type double patenting (OTDP)...more

Mintz - Intellectual Property Viewpoints

Obviousness-Type Double Patenting and Divisional Applications in Canada

Obviousness-type double patenting (“OTDP”) arises when two or more patents or applications include claims that, while not being identical, are not patentably distinct from each other. In the U.S., OTDP rejections can be...more

Smart & Biggar

Double Patenting: A comparative guide between U.S. & Canadian practice

Smart & Biggar on

Double patenting has become a common challenge to patent validity in Canada since the decision rendered by the Supreme Court of Canada in Whirlpool Corp. v Camco Inc in 2000. The Canadian double patenting doctrine is similar...more

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