News & Analysis as of

Extrinsic Evidence Prior Art

Weintraub Tobin

Ninth Circuit Refuses to Adopt “Ordinary Observer” Test for Substantial Similarity and Copyright Infringement

Weintraub Tobin on

The Ninth Circuit was recently asked to determine whether to continue to apply the Circuit’s two-part extrinsic/intrinsic test for “substantial similarity” with regard to a copyright infringement claim or to depart from this...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

PTAB Strategies and Insights - August 2021

The PTAB Strategies and Insights newsletter provides timely updates and insights into how best to handle proceedings at the USPTO. It is designed to increase return on investment for all stakeholders looking at the entire...more

Morrison & Foerster LLP - Federal Circuitry

Last Week in the Federal Circuit (August 9-13): The Dangers of Relying Solely on Extrinsic Evidence for Claim Construction

Although things often slow down in Washington in the August heat and humidity, that wasn’t the case this past week for the Federal Circuit. All told, the Court issued 5 precedential opinions and ruled in 17 cases. Below we...more

McDonnell Boehnen Hulbert & Berghoff LLP

On the Patent Eligibility of Graphical User Interfaces: Part II

This article is Part II of a study on the patent eligibility of graphical user interfaces.  Part I was published yesterday.  We continue from where we left off, with overviews of a handful of Federal Circuit § 101 decisions...more

Akin Gump Strauss Hauer & Feld LLP

Federal Circuit Snubs Extrinsic Evidence in Reversing Ruling on 12(b)(6) Motion Arguing Invalidity Under § 101

In CardioNet, LLC, et al. v. InfoBionic, Inc., the Federal Circuit reversed a district court’s ruling that affirmed a defendant’s 12(b)(6) motion that the asserted claims are invalid under 35 U.S.C. § 101, based on step one...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

PTAB Strategies and Insights - April 2020: What Evidence Can Demonstrate That A Printed Publication Was Publicly Accessible?

On April 7, 2020, the Patent Trial and Appeal Board (PTAB) clarified what evidence can demonstrate that an asserted reference qualifies as a printed publication. This two-section article will first address four decisions...more

Katten Muchin Rosenman LLP

Federal Circuit Issues Opinion on "Inherent Obviousness" in Patent Claim, Invalidating Orange Book Listed Pharma Patent

Key Points - Federal Circuit issued precedential opinion in Hospira Inc. v. Fresenius Kabi USA, LLC that affirmed obviousness of a liquid drug patent claim, encouraging future patent challengers to raise the issue of...more

Knobbe Martens

Non-Prior Art Evidence May Be Used to Prove Inherency

Knobbe Martens on

HOSPIRA, INC. V. FRESENIUS KABI USA, LLC - Before Lourie, Dyk, and Moore.  Appeal from the U.S. District Court for the Northern District of Illinois. Summary:  Evidence of the properties of claimed embodiments may be...more

Knobbe Martens

Federal Circuit Review - September 2019

Knobbe Martens on

State Sovereignty Principles Do Not Allow a State to Bring a Patent Infringement Suit in an Improper Venue - In Board of Regents v. Boston Scientific Corp., Appeal No. 2018-1700, the Federal Circuit ruled that the patent...more

Smart & Biggar

File wrapper estoppel in Canada

Smart & Biggar on

The Canadian Patent Act was amended last year to include a new provision which allows prosecution histories into evidence in patent proceedings to rebut representations made by the patentee regarding claims construction. ...more

McDermott Will & Emery

Extrinsic Evidence Can Be Used to Support Inherent Anticipation

The US Court of Appeals for the Federal Circuit affirmed a Patent Trial and Appeal Board (PTAB) finding that the challenged claims were anticipated and obvious. Monsanto Tech. LLC v. E.I. DuPont de Nemours & Co., Case No....more

Knobbe Martens

Monsanto Technology LLC v. E.I. Dupont De Nemours

Knobbe Martens on

Federal Circuit Summaries - Before Dyk, Reyna, and Wallach. Appeal from the Patent Trial and Appeal Board. Summary: Extrinsic evidence can be used to find that an allegedly anticipating reference necessarily includes...more

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