Evidence Expert Testimony

News & Analysis as of

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

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

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

Expert Is Not Permitted to Testify to Alternate Hypothetical Negotiation Dates Where No Hypothetical Negotiation Was Conducted for...

After the parties submitted expert reports in this patent infringement action, Ford objected to Eagle Harbor's damage expert's expected testimony and demonstratives. Ford objected to Eagle Harbor's evidence because it...more

Long Tail Personal Injury Claims – Have the Gates Opened in Western Australia?

In September 2014, we reported on the argument before the Supreme Court of Western Australia Court of Appeal in an appeal against the decision of Dixon v Clarke [2013] WASC 471.  The Court of Appeal delivered its reasons for...more

Expert Witness Testimony Normally Improper for Preliminary Response - B/E Aerospace, Inc. v. Mag Aerospace Industries, LLC

Clarifying what is impermissible “new” evidence for a Patent Owner Preliminary Response in an inter partes review (IPR), the Patent Trial and Appeal Board (PTAB or Board) ordered that the patent owner’s exhibit, in the form...more

Forgetting Rule 403

A recent case out of Montana, Peterson-Tuell v. First Student Transp., LLC, 339 P.3d 16 (Mont. Nov. 15, 2014), highlights the import of a Rule 403 challenge and of making your challenges and objections as comprehensive and...more

Fourth Circuit Affirms Summary Judgment against EEOC in Background Check Suit

Last week, in Equal Employment Opportunity Commission (“EEOC”) v. Freeman, No. 13-2365 (4th Cir. Feb. 20, 2105), the Fourth Circuit affirmed the award of summary judgment against the EEOC in its suit alleging that the...more

Practitioners Beware - Unfavorable Allegations And Disclosure Can Be Used Against Your Client

Arizona is a pure comparative fault state, which allows the finder of fact to apportion fault to parties and non-parties alike. As a general rule, defendants will only be responsible for their apportioned share of fault –...more

Rare Grant (in Part) of an IPR Motion to Exclude

Motions to Exclude Evidence have been one of the features of inter partes review practice that have, to date, had a less significant effect than expected. Very few motions have been granted, largely because the Board...more

Expert Testimony Must Be Supported by Evidence

Corning Inc. v. DSMIP Assets B.V. - The Patent Trial and Appeal Board (PTAB) issued final written decisions in 10 inter partes review (IPR) challenges. Although early IPR decisions generally have sustained...more

Evidence – Expert Witness Testimony – Grounds for Exclusion

City of Pomona v. SQM North America Corporation - Court Of Appeals, Ninth Circuit Nos. 12-55147, 12-55193 (May 2, 2014) - Under Federal Rule of Evidence (“FRE”) 702, expert witness testimony must meet certain...more

Invalidity Expert Excluded Where Expert Failed to Conduct a Proper Written Description Analysis

Plaintiff Trading Technologies International, Inc. ("TT") moved to strike the invalidity expert report of the defendant, CQG. TT made two arguments its motion: " that Dr. Mellor failed to conduct a proper written description...more

Florida Appellate Court Embraces Daubert Standard And Provides First In-Depth Analysis Under New Law

Last week, the Third District Court of Appeal resolved any questions concerning the applicability of the Daubert standard in Florida following the legislative changes to Florida's evidence code in July 2013. ...more

Toxic Tort and Environmental Litigation: Court of Appeals Revisits and Clarifies Causation Requirements for Expert Opinions

Causation is the crux of any toxic tort litigation. The Court of Appeals’ recent decision in Cornell v. 360 West 51st Street Realty, LLC, No. 16 (N.Y. Mar. 27, 2014) underscores that principle and revisits the causation...more

Is North Carolina a Daubert State? Drum Roll Please...

Yes! North Carolina is now officially a Daubert state, according to a recent decision of the North Carolina Court of Appeals. In State v. McGrady, COA13-330, 2014 WL 211962 (N.C. Ct. App. Jan. 21, 2014), the Court of Appeals...more

Test for expert admissibility rises signficantly in North Carolina

One of the primary functions of trial judges is to serve as gatekeepers for expert testimony. If an expert’s opinion passes the trial court’s test then a jury should hear the testimony. If not, it should be excluded to...more

En Banc Ninth Circuit Demands That Courts Serve As Gatekeepers For Expert Testimony — Will That Rule Be Extended to Class Actions?...

In the battle over class certification, expert testimony proffered by both plaintiffs and defendants is playing an increasingly important role. The Supreme Court has not yet decided whether the test for admissibility of...more

En Banc Ninth Circuit Adds Teeth To Daubert Gatekeeping Obligation

On January 15, the en banc US Court of Appeals for the Ninth Circuit issued a decision in Barabin v. AstenJohnson, Inc. that significantly strengthened and expanded the gatekeeper role of both trial and appellate courts in...more

Kimberly-Clark v. First Quality: District Court Excludes Expert Testimony on Obviousness for Failure to Include the Opinion on...

Kimberly-Clark Worldwide, Inc. ("Kimberly-Clark) filed a patent infringement action against First Quality Baby Products, LLC ("First Quality") over a variety of patents relating to disposable absorbent products, such as...more

District Court Excludes Royalty Calculation of Defense Expert Where Expert Used an Incorrect Date for the Hypothetical Negotiation

As Cassidian Communications, Inc.'s ("Cassidian") patent infringement case against Microdata GIS, Inc. ("Microdata") moved toward trial, Cassidian moved to exclude the testimony of defendants' expert. The motion to exclude...more

Pennsylvania Continues Trend of Stricter Review of Experts in Product Liability and Toxic Tort Cases

For years, plaintiffs in product liability and toxic tort cases have viewed Pennsylvania's state court system as a favorable forum. Over the past year and a half, however, the Pennsylvania appellate courts have issued...more

Attorney Argument in Preliminary Response Continues to be Trumped by Expert Evidence from Petition

Challenging two patents with a common parent application, Butamax Advanced Biofuels was able to get 28 challenged claims of one Gevo patent and 18 challenged claims of a second into separate trials for inter partes review, in...more

Maryland Court of Appeals Upholds the Frye-Reed “General Acceptance” Test for Admissibility of Expert Testimony

The Maryland Court of Appeals issued an opinion on September 24, 2013, in Josephine Chesson, et al. v. Montgomery Mutual Insurance Co., No. 97, 2013 WL 5311126, -- A.3d --- (Md. Sept. 24, 2013) (Chesson III), finding that,...more

Working with Experts: Are we off the record? (Presentation)

In this Presentation: - Summary of Key Changes in Rule 26 - FRCP 26(a)(2)- Disclosure - Rule 26(b)(4) Trial Preparation: Experts - Checklist of Suggested Practices - Excerpt from Summary of...more

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