News & Analysis as of

Doctrine of Equivalents Appeals

Federal Circuit Review - October 2017

by Knobbe Martens on

Federal Circuit Denies En Banc Rehearing in Mentor Graphics v. EVE-USA - In Mentor Graphics Corp. v. Eve-USA, Inc., Appeal Nos. 2015-1470, 2015-1554, 2015-1556, the Federal Circuit denied Synopsys’ and EVE’s petition for...more

Failure to Propose Proper Hypothetical Claim Dooms Doctrine of Equivalents

by McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit affirmed the vacatur of a jury verdict of infringement under the doctrine of equivalents and denial of infringement judgment as a matter of law (JMOL) where the patentee failed...more

2017 Supreme Court and Precedential Patent Cases From the Federal Circuit, With Some Significant Cases from 2016

Arbitration - Waymo v. Uber Technologies, 870 F.3d 1342 (Fed. Cir. 2017) - Waymo sued Uber and others for trade secret misappropriation and patent infringement. Uber contends that Waymo should be compelled to...more

Fresh From the Bench: Precedential Patent Cases From the Federal Circuit

In Jang v. Boston Scientific, the Circuit takes on the doctrine of ensnarement, affirming a district court’s grant of JMOL based on the patentee’s inability to develop a hypothetical claim that covered the accused stent but...more

Hypothetical Claim in Doctrine of Equivalents Analysis Cannot Narrow Claim Scope

In Jang v. Boston Scientific Corp., [2016-1275, 2016-1575] (September 29, 2017), the Federal Circuit affirmed the district court’s denial of Jang’s motion for judgment as a matter of law (JMOL), its vacatur of the jury...more

Recent Trends on the U.S. Doctrine of Equivalents

U.S. courts have long recognized that a product or process which does not literally infringe a patent can nevertheless infringe under the "doctrine of equivalents" if it is equivalent to the claimed invention. The percentage...more

Doctrine of Equivalents under Enzo Biochem Inc. v. Applera Corp.

by Knobbe Martens on

Before Prost, O’Malley, and Wallach. Appeal from the District of Connecticut (nonprecedential). On August 2, 2017, the Federal Circuit affirmed a decision by the U.S. District Court for the District of Connecticut granting...more

Court Questions Applicability of Function Way Result Test In Chemical Cases

by Foley & Lardner LLP on

In Mylan Institutional LLC v. Aurobindo Pharma Ltd., the Federal Circuit reviewed a preliminary injunction based in part on a finding of likelihood of success in establishing infringement under the doctrine of equivalents....more

Summaries of All Supreme Court and Precedential Federal Circuit Patent Cases Decided Since Jun. 1, 2016

This paper is based on reports on precedential patent cases decided by the Federal Circuit distributed by Peter Heuser on a weekly basis. Please see full publication below for more information....more

Recent Guidance from the Federal Circuit on the Doctrine of Equivalents in Cases Involving Chemical Compositions

by Foley & Lardner LLP on

In Mylan Institutional LLC, et al. v. Aurobindo Pharma Ltd., et al., Case No. 2017-1645, the Federal Circuit affirmed the district court’s grant of a preliminary injunction as to one of three patents-in-suit, while finding...more

Recent Developments In Patent Law May 17, 2017

Update to TC Heartland LLC v. Kraft Foods Group Brands LLC, Case No. 16-341 (May 22, 2017) - In an 8-0 opinion written by Justice Thomas (Justice Gorsuch did not participate), the Supreme Court rules that a defendant...more

Function/Way/Result Test Causes Headaches in Chemical Cases; Substitute Insubstantial Differences Test

In Mylan Institutional LLC v. Aurobindo Pharma Ltd., [2017-1645] (May 19, 2017), the Federal Circuit affirmed the grant of a preliminary injunction against the infringement of U.S. Patent 9,353,050 on a triarylmethane dye...more

Federal Circuit’s Primer on Equivalence Infringement of Chemical Process Patents

by Foley & Lardner LLP on

In an appeal characterized as “unusual,” the Federal Circuit affirmed the grant of a preliminary injunction, holding it likely that plaintiff patent holder would succeed on the merits its claim of infringement of a patent...more

Fresh From the Bench: Precedential Patent Cases From the Federal Circuit

In Mylan v. Aurobindo the Circuit affirms the grant of a preliminary injunction based upon the infringement of one of the three patents in suit. However, the panel reverses the injunction as to the other two patents based on...more

Federal Circuit Review | January 2017

by Knobbe Martens on

PTAB’s Final Written Decision in IPR Must Explain Its Basis for a Motivation to Combine References - In In Re: Nuvasive, Inc., Appeal No. 2015-1670, the Federal Circuit vacated the PTAB’s obviousness finding in an IPR,...more

Vitiation has not be Vitiated

In Power Integrations, Inc., v. Fairchild Semiconductor International, Inc, [2015-1329, 2015-1388] (December 12, 2016), a complicated action where each party claimed the other directly and indirectly infringed its patents,...more

No Approval for Generic Product for Treatment of Rosacea **WEB ONLY**

by McDermott Will & Emery on

Addressing infringement under the doctrine of equivalents and obviousness issues, the US Court of Appeals for the Federal Circuit affirmed the district court’s ruling barring approval of a generic version of Finacea® gel...more

Look to Specification to Interpret Facially Unclear Claims

by McDermott Will & Emery on

Addressing claim construction issues, the US Court of Appeals for the Federal Circuit reiterated the necessity of reading claims in the context of the written description when they are not clear on their face. Howmedica...more

Judge Rakoff Holds a 3-D “Magic Trick” Implemented With Software Is Not Equivalent to One Implemented With Hardware

On April 24, 2016, District Judge Jed S. Rakoff (S.D.N.Y.) ruled that defendants Nintendo Co., Ltd. and Nintendo of America, Inc.’s (collectively, “Nintendo”)’s 3DS pocket gaming console does not infringe Tomita Technologies...more

Federal Circuit Review - Volume 2 | Issue 12 December 2012

by Knobbe Martens on

In This Issue: • Indexing Not Required for Online Prior Art Publication • Claim Indefinite for Not Disclosing Any Structure • Aluminum Not Inherently Disclosed - Excerpt from Claim Indexing Not Required...more

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