News & Analysis as of

Indefiniteness Means-Plus-Function Section 112

Ervin Cohen & Jessup LLP

Patents Must Describe the “How” - A Reminder That Functional Claims Need Structural Support

On April 30, 2025, the Federal Circuit issued a decision in Fintiv, Inc. v. PayPal Holdings, Inc. (No. 23-2312), issued on April 30, 2025, upholding the invalidation of Finitiv Inc.’s (“Finitiv”) mobile wallet patents related...more

Jones Day

CAFC Holds PTAB May Not Cancel Claims For Indefiniteness In An IPR

Jones Day on

The Federal Circuit’s recent decision in Samsung Electronics America, Inc. v. Prisua Engineering Corp., — F.3d —, 2020 WL 543427, at *4 (Fed. Cir. Feb. 4. 2020), could not be more clear: “[W]e hold that the Board may not...more

Foley & Lardner LLP

PTAB Cannot Invalidate Challenged Claims for Indefiniteness in an IPR

Foley & Lardner LLP on

The Federal Circuit definitively rejected arguments to cancel challenged claims for reasons other than anticipation or obviousness in an inter partes review proceeding. In Samsung Electronics America, Inc., v. Prisua...more

Akin Gump Strauss Hauer & Feld LLP

Federal Circuit Addresses Indefiniteness and Mean-Plus-Function Claiming in Inter Partes Review Proceedings at the PTAB

The Federal Circuit reversed and remanded a Patent Trial and Appeal Board (the “Board”) decision declining to analyze patent claims as anticipated or obvious in an inter partes review (IPR) where the Board found the...more

Mintz - Intellectual Property Viewpoints

Means-Plus-Function Structure – Can be it Incorporated by Reference?

In its recent decision, Fiber, LLC. v. Ciena Corp., No. 2019-1005 (Fed. Cir. Nov. 21, 2019), the Court of Appeals for the Federal Circuit (Federal Circuit) issued a reminder that the structure necessary to satisfy the...more

Jones Day

After SAS, Indefinite Claims Can Be A Definite Problem For IPR Petitioners

Jones Day on

The definiteness requirement for patent claims is set forth in Section 112(b), mandating that a patent specification conclude with one or more claims “particularly pointing out and distinctly claiming subject matter which the...more

WilmerHale

Federal Circuit Patent Updates - August 2018

WilmerHale on

Ericsson Inc. v. Intellectual Ventures I LLC (No. 2017-1521, 8/27/18) (Reyna, Taranto, Chen) Reyna, J. - Vacating and remanding the PTAB’s IPR decision because the PTAB erred in not considering portions of the petitioner’s...more

Knobbe Martens

Diebold Nixdorf, Inc. v. ITC

Knobbe Martens on

Federal Circuit Summary - Before Prost, Bryson, and O’Malley. Appeal from the United States International Trade Commission (“ITC”). Summary: Evidence intrinsic to a patent may be sufficient to overcome the presumption...more

Mintz - Intellectual Property Viewpoints

With Software Patents and Means-Plus-Function, “Structure” Takes On a New Meaning

Functional Claiming in Software Patents - Software patents are generally directed to a sequence of steps or rules, i.e., an algorithm, performed by a computer programmed to carry out the algorithm. Because algorithms are...more

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