News & Analysis as of

Expert Testimony Prior Art Claim Construction

Alston & Bird

Patent Case Summaries | Week Ending May 23, 2025

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EcoFactor, Inc. v. Google LLC, No. 2023-1101 (Fed. Cir. (W.D. Tex.) May 23, 2025). En banc opinion by Moore, joined by Lourie, Dyk, Prost, Taranto, Chen, Hughes, and Stoll. Opinion concurring in part and dissenting in part by...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: EcoFactor, Inc. v. Google LLC

EcoFactor, Inc. v. Google LLC, Appeal No. 2023-1101 (Fed. Cir. May 21, 2025) In its first en banc decision of the year, the Federal Circuit reversed a district court’s admission of expert testimony concerning damages,...more

Knobbe Martens

No Error: The Board Committed No Procedural Error by Relying on Evidence Outside of the Prior Art Reference

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SAGE PRODUCTS, LLC v. STEWART [OPINION] - Before Reyna, Cunningham, and Stark. Appeal from the United States Patent and Trademark Office, Patent Trial and Appeal Board. The Board did not abuse its discretion by relying on...more

Jones Day

Expert Testimony Supporting POPR Can Be An Effective Strategy

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It is relatively uncommon for parties to submit expert declarations in the preliminary-response phase of an IPR proceeding, but recently the Patent Owner in Imperative Care, Inc. v. Inari Medical, Inc. effectively used that...more

BakerHostetler

[Podcast] The Changing Landscape: Admissibility of Experts in Patent Cases

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Experts play a crucial role in patent cases. Experts opine on claim construction, infringement, invalidity and the proper amount of damages. And the exclusion of an expert witness can significantly impact the outcome of a...more

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

PTAB Year in Review – Caveat Experimenter: Using Experimental Data in PTAB Proceedings Comes With Risks

Parties involved in Patent Trial and Appeal Board (PTAB) proceedings sometimes contemplate submitting experimental data to support their positions. Although such data can be useful, there also are risks. Several recent cases...more

Akin Gump Strauss Hauer & Feld LLP

Voluminous Expert Testimony and Exhibits Insufficient on Their Own to Warrant Denial of IPR Institution

The Patent Trial and Appeal Board granted institution of inter partes review of a patent directed to delivery of targeted television advertisements. The board rejected patent owner’s argument that a lack of particularity as...more

Baker Botts L.L.P.

Third Quarter 2024 Federal Circuit Law Update

Baker Botts L.L.P. on

Since serving as a Federal Circuit clerk, Michael Hawes has monitored that court's precedential opinions and prepares a deeply outlined index by subject matter (invalidity, infringement, claim construction, etc.) of relevant...more

McCarter & English, LLP

Patent Office Cancels Patents for Inadequate Voluntary Disclosure in IPRs

Inter partes reviews (IPRs) are litigation-like procedures held before the Patent Trial and Appeal Board (PTAB) of the United States Patent and Trademark Office that are used to challenge the validity of patents. Typically,...more

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

PTAB Strategies and Insights Newsletter: May 2022

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

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

2021 PTAB Year in Review: Analysis & Trends: Editors' Introduction

Love it or hate it, ignore the USPTO Patent Trial and Appeal Board (PTAB) at your peril. The introduction of the PTAB as part of the America Invents Act over ten years ago has forever changed patent litigation. In its first...more

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

2021 PTAB Year in Review: Analysis & Trends

[co-author: Jamie Dohopolski] Love it or hate it, ignore the USPTO Patent Trial and Appeal Board (PTAB) at your peril. The introduction of the PTAB as part of the America Invents Act over ten years ago has forever changed...more

McDonnell Boehnen Hulbert & Berghoff LLP

Bracco Diagnostics Inc. v. Maia Pharmaceuticals, Inc. (Fed. Cir. 2020)

Stipulating to infringement after a contrary claim construction is a conventional stratagem for a losing party to have a final judgment that can be challenged before the Federal Circuit.  The risk of course, is that if the...more

McDonnell Boehnen Hulbert & Berghoff LLP

Chevron U.S.A. Inc. v. University of Wyoming Research Corp. (Fed. Cir. 2020)

Interferences were rendered unnecessary with the passage of the Leahy-Smith America Invents Act in 2011, but they linger in disputes between patents and applications claiming priority to applications filed before the change...more

Goodwin

ITC 337 Quarterly Insider Q2 2020

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Goodwin’s 337 Quarterly Insider remains the premiere publicly available source for keeping up to date on all meaningful decisions coming out of the Commission. Please find below Goodwin’s insights on the months of April, May,...more

Mintz - Intellectual Property Viewpoints

Filling the Hole with Common Sense: When Evidentiary Support is Adequate

The Federal Circuit recently reaffirmed a case where common sense was used to supply a missing element in a § 103 obviousness analysis. On June 26, 2020, the Federal Circuit issued a decision in B/E Aerospace, Inc. v. C&D...more

Jones Day

It’s Obvious: POSA Could Write Software To Generate Conference Call Requests

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A recent PTAB decision underscores the importance of establishing the level of ordinary skill for a successful obviousness challenge. Cisco Sys., Inc. v. Uniloc USA, Inc., IPR2017-00058, Paper 17 (PTAB Apr. 6, 2018). It is...more

Jones Day

Not So Secondary: Overcoming Obviousness With Objective Indicia

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On April 2, 2018, the PTAB issued a final written decision in Fox Factory finding that the petitioner failed to carry its burden in showing the instituted claims were unpatentable as obvious. Fox Factory, Inc. v. SRAM, LLC,...more

Jones Day

Anticipation by Combining Elements from the Four Corners of a Reference

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In a January 12 article, Anticipation Requires More Than A Reference That Discloses All The Elements, we discussed the Microsoft Corp v. Biscotti, Inc. case, where the Federal Circuit affirmed a decision of the PTAB finding...more

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

Federal Circuit Appeals from the PTAB: Summaries of Key 2017 Decisions

In 2016, the US Court of Appeals for the Federal Circuit docketed more appeals from the US Patent and Trademark Office (PTO) than any other venue—a first in its over 30-year history. The post grant proceedings created by the...more

Mintz - Intellectual Property Viewpoints

Establishing Obviousness: A Fundamental Case of Evidence Over Arguments

The Federal Circuit affirmed the Patent Trial and Appeal Board’s inter partes review decision declaring various claims of patent owner Thales’ U.S. Patent No. 6,474,159 (“the ‘159 patent”) nonobvious. In doing so, the Federal...more

Jones Day

Unsupported Assertions: Expert’s Persuasive Authority Suffers Without Directly Engaging Claim Limitations

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An expert asserting that a patent claim reciting different features than the prior art is nonetheless “equivalent” to the prior art must address and account for the recited limitations head-on, or otherwise lose persuasive...more

McDermott Will & Emery

PTAB Grants Late Motion to Amend, But Amended Claims Fail to Breathe Life into Patent

Addressing the standards for a motion to amend claims during an inter partes review (IPR) proceeding, the Patent Trial and Appeal Board (PTAB or Board) granted a motion to amend the claims in an IPR, but ultimately denied...more

Knobbe Martens

Federal Circuit Review | December 2015

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Expert Testimony Not Always Necessary to Establish Prima Facie Obviousness Case in Inter Partes Review - In Belden Inc. v. Berk-Tek LLC, Appeal Nos. 2014-1575, 2014-1576, on appeal from an IPR, the Federal Circuit...more

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