News & Analysis as of

Burden of Proof Expert Witness

WilmerHale

Federal Circuit Patent Watch: An Expert Need Not Have Acquired the Requisite Skill Level Prior to the Time of the Invention

WilmerHale on

Precedential and Key Federal Circuit Opinions - WISCONSIN ALUMNI RESEARCH FOUNDATION v. APPLE INC. [OPINION] (2022-1884, 8/28/2024) (Prost, Taranto, and Chen) - Prost, J. The Court affirmed two final judgments of the...more

Ankura

Amendments to Federal Rule of Evidence 702 and the Implications for Expert Witnesses

Ankura on

Effective December 1, 2023, the amendment to the United States Federal Rule of Evidence 702 clarifies and emphasizes existing requirements for the admissibility of expert witness testimony. Overall, the amendment to Rule 702...more

Bricker Graydon LLP

Expert Competency Rule Change Reverses Effects of Johnson v. Abdullah

Bricker Graydon LLP on

To succeed in meeting their evidentiary burden for a medical malpractice claim, a plaintiff must prove a breach of the standard of care, causation, and damages through expert testimony. See Bruni v. Tatsumi, 46 Ohio St.2d...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

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

Products Liability Series: Does Arkansas Law Require an Expert Witness?

Does Arkansas products liability law require an expert witness? Technically, the answer is “it depends.” But for a plaintiff to make a claim in a products case, the answer is almost always “yes.”...more

Dechert LLP

Recent Section 36(b) Post-Trial Ruling Awards Complete Victory to Mutual Fund Investment Adviser

Dechert LLP on

The U.S. District Court for the Southern District of New York issued a comprehensive post-trial ruling on September 30, 2019 in Chill v. Calamos Advisors LLC, holding that Plaintiffs failed to meet their burden to show that...more

Harris Beach PLLC

Court Decision Highlights Key Role of Expert Witness in Food Manufacturer Suits

Harris Beach PLLC on

The Appellate Division of New York, Second Department, recently upheld a lower court’s decision denying a defendant manufacturer’s application to perform destructive testing on a plastic object surgically removed from...more

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

PTAB Strategies and Insights - May 2018: “Addendum – Lack of Motivation to Combine – Avoid Declarant Weaknesses”

As follow up to last month’s article on lack of motivation to combine, another just released Board decision in IPR2016-00972 (Paper 18) again found for patent owner because the petition failed to provide a proper motivation...more

Knobbe Martens

Elbit Systems Of America, LLC v. Thales Visionix, Inc.

Knobbe Martens on

Federal Circuit Summaries - Before Moore, Wallach, and Stoll. Appeal from the Patent Trial and Appeal Board. Summary: The PTAB is entitled to weigh the credibility of expert witnesses, and attorney argument cannot be...more

Foley & Lardner LLP

Seventh Circuit Underscores Important Role for Pre-Certification Challenges to Expert Witnesses

Foley & Lardner LLP on

In order to certify a class action, it is the plaintiff’s burden to prove that all of the requirements of Rule 23 of the Federal Rules of Civil Procedure are satisfied. In some class actions, plaintiffs cannot proceed without...more

Snell & Wilmer

Recent Arizona appellate decisions of note to providers

Snell & Wilmer on

With change, breaking news, and uncertainty dominating the legal concerns of health care providers on a federal level, it remains important to review and refresh on state-level concerns and legal rules. This is especially...more

Adler Pollock & Sheehan P.C.

Rhode Island Supreme Court Decision Serves As A Reminder To Engage Necessary Experts Early In The Case

A recent Rhode Island Supreme Court decision serves as an important reminder of the need to engage essential expert witnesses early in a case and, at a minimum, before discovery responses are due....more

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