News & Analysis as of

Expert Witness Appeals

Marshall Dennehey

Court Affirms Benefits for Aggravation of Preexisting Knee Condition Despite Employer’s Challenge

Marshall Dennehey on

Lebanon Transit v. Philip Schaeffer (WCAB), No. 141 C.D. 2024, April 7, 2025, (previously not reported and reported by Order dated July 10, 2025) - The Commonwealth Court of Pennsylvania affirmed a decision awarding benefits...more

McDermott Will & Schulte

En Banc Federal Circuit Cools Damages Award Because of Improper Expert Testimony

In an en banc decision in EcoFactor, Inc. v. Google LLC, the US Court of Appeals for the Federal Circuit concluded that the district court abused its discretion by admitting testimony from a damages expert that a lump-sum...more

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

Federal Circuit in EcoFactor, Inc. v. Google LLC Probes the Limits for Gatekeeping Damages Testimony

Last week, in EcoFactor, Inc. v. Google LLC, the Federal Circuit issued its first en banc decision in a utility patent case in several years. The case involves the gatekeeping function of district courts vis-à-vis expert...more

Greenbaum, Rowe, Smith & Davis LLP

New Jersey Supreme Court Opinion Refines Affidavit of Merit Requirements for Malpractice Case Against Physician Certified in...

In another in the seemingly endless series of decisions parsing the interpretation of the statutory requirements for an affidavit of merit in medical liability claims, on January 22, 2025 the New Jersey Supreme Court issued...more

Faegre Drinker Biddle & Reath LLP

Foundation, Not Façade — The Fifth Circuit Affirms the Proper Basis Requirement for Admissibility of Expert Opinions in Newsome v....

In a toxic tort case, plaintiffs must establish general causation. If a substance is incapable of causing the type of injury plaintiff claims, then it certainly didn’t cause theirs. Under Texas law, toxic tort plaintiffs must...more

Marshall Dennehey

Supreme Court of New York, Appellate Division Reversed Jury Verdict to Dismiss Complaint, Finding the Supreme Court Exercised...

Marshall Dennehey on

Deliz v. Julia Rose Transport, --- N.Y.S.3d --- (N.Y. App. Div. 2d Dept. 2024) - In Deliz, the plaintiff presented an expert witness to testify that the most likely cause of the motor vehicle accident was that the defendant...more

Carlton Fields

Florida Appeals Court Decisions: Week of November 11-15, 2024

Carlton Fields on

U.S. Eleventh Circuit Court of Appeals - Baxter v. Hendren - appellate jurisdiction, not pursuing claim, § 1983, excessive force, battery...more

McDermott Will & Schulte

Don’t Tread on Illinois’ Absolute Litigation Privilege

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Addressing when Illinois law’s “absolute litigation privilege” bars certain counterclaims, the US Court of Appeals for the Federal Circuit affirmed a district court’s summary judgment finding that the plaintiff lacked a valid...more

Knobbe Martens

Federal Circuit Review - September 2024

Knobbe Martens on

Combining Abstract Ideas Does Not Make Them Less Abstract - In Broadband Itv, Inc. v. Amazon.Com, Inc., Appeal No. 23-1107, the Federal Circuit held that when assessing patent eligibility under 35 U.S.C. § 101, combining two...more

Knobbe Martens

An Expert Witness Need Not Have Been a Posita at the Time of the Invention

Knobbe Martens on

Before Dyk, Clevenger, and Stoll.  Appeal from the United States District Court for the District of Delaware. Summary: An expert witness can testify from the perspective of a POSITA at the time of the invention even if they...more

Holland & Knight LLP

What Is "Natural?"

Holland & Knight LLP on

When it comes to consumer class action litigation, what type of evidence is required to show that labeling nutrition bars as "all natural" violates false advertising and consumer protection laws? According to the plaintiffs...more

Mitchell, Williams, Selig, Gates & Woodyard,...

Flooding/Road Improvements: Massachusetts Appellate Court Addresses Private Nuisance Issue

A Massachusetts appellate court addressed in an August 10th Opinion an issue arising out of the flooding of property allegedly caused by adjacent road improvements. See Gillis v. Town of Uxbridge, No. 22-P-641, 2023 WL...more

White & Case LLP

Sharma v Minister for the Environment: A setback for climate change claimants as landmark decision is overturned on appeal

White & Case LLP on

In a setback for climate change claimants, on 15 March 2022 a three-judge panel of the Full Federal Court of Australia overturned the earlier decision of the Federal Court of Australia in Sharma v Minister for the...more

Faegre Drinker Biddle & Reath LLP

Eleventh Circuit Holds Expert Qualified in Surgical Tool Suit Despite Lack of Experience Using the Product

The Eleventh Circuit recently reinstated a case alleging a surgical tool caused internal burns during a hysterectomy surgery, holding that the district court erred in disqualifying an expert on the basis that he had never...more

Smart & Biggar

Federal Court continues recent trend of granting summary judgment in appropriate patent proceedings

Smart & Biggar on

In a recent decision, Flatwork Technologies LLC v Brierley (2020 FC 997), the Federal Court granted summary judgment in favour of the Plaintiff, Flatwork Technologies, LLC (Flatwork), in respect of its patent impeachment...more

Mitchell, Williams, Selig, Gates & Woodyard,...

Product Liability Appeal Won Due to Analytical Gaps in Plaintiff's Expert Witness Opinion

In a negligence and failure-to-warn case brought against a product distributor, the plaintiff was relying on their expert witness as the sole means to prove that the product at issue came from the defendant. However, the...more

Sunstein LLP

FanDuel Learns the Hard Way: An IPR Challenge to Any Patent Claim May be Lost if Not Comprehensive and Rigorous Enough

Sunstein LLP on

As we demonstrated in our own successful appeal, Arendi S.A.R.L. v. Apple Inc. (Fed. Cir. 2016), a petition for inter partes review (“IPR”) may fail when an expert declaration lacks detailed explanation. An expert’s...more

Miles & Stockbridge P.C.

Maryland's Highest Court Issues Landmark Decision Adopting Daubert Admissibility Standard

The Court of Appeals stepped in for Hollywood last week to make sure Marylanders (or, at least, Maryland litigators) did not go the whole summer without a blockbuster. In Rochkind v. Stevenson II (“Stevenson II”), Judge...more

Knobbe Martens

The Definition of “Half-Liquid” Is Only Half Baked

Knobbe Martens on

IBSA INSTITUT BIOCHIMIQUE, S.A. V. TEVA PHARMACEUTICALS USA, INC. Before Prost, Reyna, and Hughes. Appeal from the District Court of Delaware - Summary: A term may be indefinite when the proposed construction is not...more

Rumberger | Kirk

Daubert Applies Retroactively, Explains Fourth DCA

Rumberger | Kirk on

The Fourth District Court of Appeal recently issued a reminder that Daubert is the standard for all disputes regarding admissibility of expert testimony in Florida, and applies retroactively even where Frye was the standard...more

Holland & Knight LLP

AseraCare Announces Settlement of Landmark False Claims Act Case for $1 Million

Holland & Knight LLP on

After litigation spanning more than a decade, hospice provider AseraCare announced its $1 million settlement with the U.S. Department of Justice (DOJ) in a closely-watched False Claims Act (FCA) case in the U.S. District...more

McDonnell Boehnen Hulbert & Berghoff LLP

HVLPO2, LLC v. Oxygen Frog, LLC (Fed. Cir. 2020)

Expert witness testimony is a frequent (almost ubiquitous) feature of patent litigation, if only because questions of the state of the art or the understanding of one having ordinary skill in the art are almost always at...more

Knobbe Martens

Non-Expert Testimony on Obviousness Is Inadmissible

Knobbe Martens on

HVLPO2, LLC v. OXYGEN FROG, LLC - Before Newman, Moore, and Chen. Appeal from the United States District Court for the Northern District of Florida. Summary: It is an abuse of discretion to permit a witness to testify...more

Faegre Drinker Biddle & Reath LLP

Hierarchy of Scientific Evidence Reigns Supreme: NJ Appellate Division Affirms Exclusion of Experts in Accutane Litigation

In In re: Accutane Litigation (A-4952-16T1) — an appeal decided just 10 days after oral argument — the New Jersey Appellate Division applied the New Jersey Supreme Court’s landmark decision In re Accutane Litigation, 234 N.J....more

Buchalter

Contractor Learns You Need an Expert to Join “Battle of the Experts”

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It kind of goes without saying, but you should probably bring your expert to a dispute if there is going to be a battle of the experts. One contractor recently learned this lesson to the tune of $65,000....more

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