Expert Testimony

News & Analysis as of

Expert Testimony Not Always a Guarantee for Appellate Review with Deference - Shire Development v. Watson Pharmaceuticals; Teva...

Addressing the impact of expert testimony used during claim construction, the U.S. Court of Appeals for the Federal Circuit in a case remanded by the U.S. Supreme Court, following its January 5, 2015 decision in Teva...more

Product Liability Update - July 2015

Massachusetts Supreme Judicial Court Holds Failure-to-Warn Claim Against Drug Manufacturer Not Preempted Because There Was No “Clear Evidence” FDA Would Not Have Approved Plaintiffs’ Suggested Warning; Also Holds...more

JMOL Of Infringement Is Granted Following Bench Trial

Following a bench trial on July 13 through 16, 2015, defendant challenged plaintiff’s infringement claims and both sides moved for JMOL. Defendant argued unsuccessfully that plaintiff’s expert’s testimony was improper as...more

False Advertising? Not if Just One Expert Says It’s Not.

The United States Court of Appeals for the Fourth Circuit recently held that “a manufacturer cannot be liable for false advertising so long as at least one qualified expert opines that the representations made are truthful,...more

MOL engineer not qualified to give expert evidence: he was too involved in the investigation, too closely identified with...

An Ontario judge has refused to permit a professional engineer employed with the Ontario Ministry of Labour to testify as an expert in a health and safety prosecution. A company was charged under the Occupational Health...more

Daubert – and a Mechanical Pencil – Doom the Testimony of “Clinical Engineering” Expert

“If it doesn’t fit, you must acquit.” In the granddaddy of today’s reality TV shows, this buzz-phrase became synonymous with “use your head before you rely on a demonstration.” The plaintiff in Hutson v. Covidien Holdings,...more

How an Expert Can Affect Your Oil and Gas Claim

Your well consultant just cemented 10,000 feet of tubing inside the casing of your eight million dollar well, … a neighboring operator frac’ed his Eagle Ford well into your Austin Chalk completion, thereby trespassing and...more

Federal Circuit Revisits and Recasts Means-Plus-Function Claim Interpretation

An en banc decision from the Federal Circuit last week overruled a line of cases governing the interpretation of functional claim language, calling into question how courts, the PTO, and industry will treat such language in...more

Re-Examining the Admissibility of Unpaid Medical Bills as Evidence

In Bermudez v. Ciolek (No. G049510, filed June 22, 2015), the California Court of Appeal, Fourth District, held unpaid medical bills, joined with expert testimony regarding their reasonableness, were properly admitted and...more

Federal Circuit Defers To District Court’s Factual Finding That “Voltage Source Means” Connotes Sufficient Structure To Avoid...

Today, the Federal Circuit issued a ruling in Lighting Ballast v. Philips on remand from the Supreme Court after the Teva decision changed the standard of review of a district court’s claim construction. One of the more...more

NC Court of Appeals’ first Daubert decision in a civil case: expert allowed to testify as to cause of fatal accident

As I previously posted, in 2011 North Carolina became a Daubert state which raised the bar for the admissibility of expert testimony in NC state courts.  In April of 2015, the NC Court of Appeals issued its first decision...more

Daubert And Dispositive Motions Are Decided

Stark, C. J. Plaintiffs' Motion to Exclude Certain Opinions of Defendants' Technical Expert Glenn Reinman is denied. Plaintiffs' Motion to Exclude Opinions and Proposed Testimony of Jeremiah Grant is denied in part and...more

District Court Issues Order Allowing Plaintiffs in Case Seeking Review of Neonicotinoid Pesticides under the ESA to Utilize Extra...

On June 12, 2015, Federal District Judge Maxine Chesney issued a decision in Ellis v. Housenger (N.D. Cal.) allowing the plaintiffs to utilize expert declarations and exhibits that were not included in the certified...more

What Exactly Was Excluded? Proffering Expert Opinions to Preserve Daubert/Frye Challenges

Most practitioners would agree that, if the court excludes an expert based on a Daubert challenge—and that is the only expert opining on a subject—then in most instances there should be no need to proffer the expert’s...more

Texas High Court Limits Interdependent Expert Opinions

Experts may not rely on the unreliable opinions of other experts. In a recent opinion in Gharda USA, Inc. v. Control Solutions, Inc., No. 12-0987, --S.W.3d--, 2015 WL 2148058, at *9 (Tex. May 8, 2015), the Supreme Court...more

Guest Post - Game of Unknowns: A Daubert Ruling From the Middle District of Florida

Here at the DDL Blog, there are few things we enjoy more than a defense-friendly Daubert ruling – one of those things being, of course, our regular Sunday night HBO date with Game of Thrones. The “Hardhome” episode two...more

And That's The Ballgame: Summary Judgment for Forest Labs In Lexapro Suicide Case

Those of us who live in Philadelphia are endlessly fond of rocking on our porches and reminiscing about the halcyon baseball season of 2008, when our beloved Phillies won the World Series. These days, we are resigned to a...more

Defending Against Non-Retained Experts

California is generally regarded as providing broad leeway for non-retained experts to testify on a range of matters. Several recent decisions, however, have narrowed the scope of permissible testimony for non-retained...more

Conflicting Expert Opinions Prevent Summary Judgment

A recent summary judgment opinion by Judge Patti B. Saris highlights the importance of expert testimony in substantiating factual disputes and withstanding summary judgment. In denying both parties’ motions for summary...more

Info-Hold Cases: De Novo Review Where Claim Construction Evidence Is Neither Intrinsic Nor Extrinsic and Expert Damages Testimony...

In two decisions involving the same plaintiff and patent but different defendants, the U.S. Court of Appeals for the Federal Circuit applied de novo review after choosing not to classify evidence used below and reversed an...more

California District Court Grants Summary Judgment Based on Lack of Evidence Supporting Claims for Asbestos Exposure

A California district court recently granted summary judgment in favor of four defendants on the grounds that plaintiffs had no evidence that a decedent was exposed to asbestos from defendants’ products. (Livingston v. ABB,...more

District Court Orders Submission of Expert Reports on Damages to Determine Proper Usage of Entire Market Value Rule

Invista North America S.A. R.L. ("Invistia") filed a patent infringement action against M&G USA Corporation ("M&G"). As the case progressed toward trial, both parties exchanged expert reports on damages, which implicated the...more

Florida High Court to Examine the Scope of a Psychotherapist’s Legal Duty to Prevent an Outpatient’s Suicide

The Florida Supreme Court has accepted review of Granicz v. Chirillo, 147 So. 3d 544 (Fla. 2d DCA 2014), where the Second District reversed a summary judgment in favor of a psychotherapist, finding that plaintiff’s expert...more

Globus Argues Expert’s Faked Credentials Warrants New Trial

In 2011, DePuy-Synthes, a subsidiary of Johnson & Johnson Inc. sued Globus Medical, Inc. in the United States District Court for the District of Delaware. In that suit, Synthes alleged that Globus had infringed three Synthes...more

District Court Denies Motion to Exclude Expert Testimony on the Ground That the Expert Was Not a Person Having Ordinary Skill in...

Defendants sought to exclude the testimony of Plaintiff's expert Joseph C. McAlexander III in its entirety because he lacked the appropriate technical background. In their motion, Defendants alleged that Mr. McAlexander's...more

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