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Patent Litigation Prior Art Clinical Trials

Fish & Richardson

Can Clinical Trials Negate Patentability for Pharma Inventions?

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The answer to this inquiry is “yes” — but maybe “no.” Will confidentiality agreements shield any prior art concerns? Once again, maybe “yes” — but maybe “no.” Indeed, do clinical trials constitute an experimental use that...more

Womble Bond Dickinson

Unexpected Results in Hatch Waxman Litigation: A Review of Legal Decisions from 2023

Womble Bond Dickinson on

Patent owners generally look to secondary indicia to bolster their nonobvious defenses when prior art and/or knowledge of a person of ordinary skill in the art (“POSA”) seem to make the obviousness decision a close call. This...more

Akin Gump Strauss Hauer & Feld LLP

Patentee’s Own Clinical Trial Renders Unpatentable Patent Claims Directed to Antibody Treatment

In a final written decision of an inter partes review proceeding, the Patent Trial and Appeal Board found all 12 claims of a challenged patent unpatentable as either anticipated or obvious. Each ground of unpatentability...more

Haug Partners LLP

No Clear Error to Find Lack of Written Description for a Method of Treatment Patent Despite Separate Disclosures of the Drug,...

Haug Partners LLP on

Biogen International GMBH, Biogen MA, Inc., v. Mylan Pharmaceuticals Inc. marks the Federal Circuit’s most recent interpretation of the 35 U.S.C. § 112 written description requirement in the Hatch-Waxman context. No....more

Foley & Lardner LLP

Federal Circuit Reverses PTAB On Reasonable Expectation Of Success For TARCEVA Patent

Foley & Lardner LLP on

In OSI Pharmaceuticals LLC v. Apotex, Inc., the Federal Circuit reversed the PTAB’s determination that a Tarceva® patent was invalid as obvious because the decision was not supported by a reasonable expectation of success....more

Knobbe Martens

Completion of Phase I Safety Trials for FDA Approval May Not Be Sufficient to Show Reasonable Expectation of Success

Knobbe Martens on

OSI PHARMACEUTICALS, LLC v. APOTEX INC - Before Stoll, Newman, and Taranto. Appeal from the Patent Trial and Appeal Board. Summary: A pharmaceutical company’s statement touting the completion of Phase I safety trials...more

Knobbe Martens

Federal Circuit Review - May 2019

Knobbe Martens on

Reasonably Continuous Diligence Is Not Negated If an Inventor Works On Improvements or Evaluates Alternatives to the Claimed Invention - In ATI Technologies ULC v. IANCU, Appeal Nos. 2016-2222, -2406, -2608, the Federal...more

Knobbe Martens

Prior Art Regulatory Guidelines That Recite a Goal Without Teaching How That Goal Can Be Achieved Are of Limited Value as an...

Knobbe Martens on

ENDO PHARM, INC., v. ACTAVIS LLC - Before Wallach, Clevenger, and Stoll. Appeal from the United States District Court for the District of Delaware....more

Foley & Lardner LLP

Federal Circuit Takes A Narrow View Of Reasonable Expectation Of Success

Foley & Lardner LLP on

The Federal Circuit decision in Acorda Therapeutics, Inc. v. Roxane Laboratories, Inc. addressed several aspects of obviousness doctrine. We previously wrote about the impact of a blocking patent on consideration of objective...more

Foley & Lardner LLP

PTAB Institutes Kyle Bass IPR Against Pharmaceutical Patent Based On SEC Document

Foley & Lardner LLP on

Kyle Bass has filed numerous prior IPR petitions against pharmaceutical patents, some of which have been denied due to use of prior art references that were not sufficiently proven to be “publicly accessible” (see “Clinical...more

Foley & Lardner LLP

Clinical Trials as Prior Art: PTAB Denies Bass IPR Petition With Only a "Hope" of Efficacy

Foley & Lardner LLP on

In the most recent loss for Kyle Bass’ hedge fund in IPR proceedings, the Board denied institution of an IPR based on a petition filed by Coalition for Affordable Drugs V LLC (CFAD) against Biogen MA Inc. IPR2015-01136, Paper...more

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