Follow the Rules … Most of the Time
Podcast - Part I: Being an Expert Is a Lonely Business
Podcast: Don't Just Say It – Show It
Podcast - Expert Witnesses, Special Issues
Podcast - Direct Examination of Expert Witnesses
Chemical Engineering Expert Witness Experience & Discovery – IMS Insights Podcast Episode 48
Podcast: Science in the Courtroom
Bar Exam Toolbox Podcast Episode 159: Listen and Learn -- Evidence: Expert vs. Lay Witness Testimony
Podcast: What Witness Preparation Means
Podcast: Seven Witness Preparation Mistakes Lawyers Make
Podcast: Raise Your Right Hand, Miss Lillian
Jones Day Talks Intellectual Property: Blurrier Lines and Narrow Grounds—Implications of the Ninth Circuit’s Blurred Lines Decision
Episode 015: Confessions of a Business Appraiser: A Conversation with Chris Mercer
Inter Partes Review: Validity Before the PTAB
Supreme Court Raises the Bar for Class Certification in Comcast Corp. v. Behrend
In a significant decision for plaintiffs litigating traumatic brain injury (TBI) claims, the U.S. District Court for the Northern District of Oklahoma has denied a defense motion to exclude expert testimony based on diffusion...more
On February 12, 2025, the United States District Court for the District of Delaware denied defendant Parse Biosciences’s (“Parse”) motions for summary judgment that: (i) Parse had never actually conducted any direct or...more
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
The district court erred by admitting untimely expert testimony on noninfringement and by refusing to grant a new trial after the jury found noninfringement. Trudell Medical International (“Trudell”) sued D R Burton...more
The US Court of Appeals for the Federal Circuit reversed a district court’s decision to admit expert testimony and remanded the case to a different judge, noting that “from the moment this case fell in his lap, the trial...more
In our recent articles exploring how generative AI can transform trial preparation, we demonstrated how Large Language Models (LLMs) could analyze complex trial materials to generate sophisticated closing arguments. Our first...more
Expert witnesses can be critical to defending a tax position—but what happens when an expert must maintain confidentiality over information that is important to their analysis? Preserving this confidentiality while ensuring a...more
Despite clear judicial warnings and sanctions, legal professionals continue to submit AI-generated court documents with fabricated content. This disturbing trend, exemplified by cases like Mata v. Avianca, threatens the...more
A federal judge in Minnesota recently granted a motion to exclude an expert declaration explaining the dangers of AI deepfakes because the declaration itself contained AI-hallucinated citations. The case was a First Amendment...more
Kilpatrick partners John Alemanni and Justin Krieger recently presented a CLE addressing “Building a Winning Evidentiary Record at the PTAB (and Surviving Appeal).”...more
MIRROR WORLDS TECHS., LLC v. META PLATFORMS, INC. - Before Prost, Taranto, and Stark. Appeal from the United States District Court for the Southern District of New York. Summary: Expert testimony that is conclusory,...more
Federal Rule of Civil Procedure 26(a)(2) requires parties to disclose the opinions of experts who may present evidence at trial. If the disclosures are inadequate, Rule 37(c) requires exclusion of the opinions “unless the...more
It has now been over six months since the amendment to Federal Rule of Evidence 702 regarding the admissibility of expert testimony went into effect on Dec. 1, 2023....more
Being an expert witness is a demanding task, but an expert’s testimony is crucial and can either make or break a client’s case. Credibility is paramount for any expert witness; it is the foundation an expert stands on to...more
Chemical engineering expert and IMS Elite Expert Terry Livingston discusses the role of an expert witness and the advantages of working with experts early in discovery. Listen, watch, and/or read the transcript below. (Part 1...more
Harris Beach attorneys Abbie Eliasberg Fuchs, Bradley M. Wanner and Daniel R. Strecker review and analyze key judicial holdings and legal developments in New York, the federal arena and across the country that have affected...more
Not just anyone is qualified to testify as an expert witness. Edward Teller quoted Niels Bohr as describing an expert as "a person who has found out by his own painful experience all the mistakes that one can make in a very...more
It is not uncommon for an opposing expert to opine that the existence of injury alone implies negligence, nor is it unusual to find that such opinions are supported only by general reliance on “literature” with no discernible...more
While we all rely on Google or other internet search engines to find and absorb information quickly these days, a recent decision in the Central District of Illinois highlights the problems for expert witnesses relying on...more
Expert witnesses are a critical part of litigation. A good expert can properly assess a case, help position a case for settlement and provide helpful testimony at trial. Like all witnesses, an expert witness’ bias may be...more
As discussed in our previous post, one of the most critical tasks for Patent Owners during the Inter Partes Reviews (“IPR”) discovery period is deposing the Petitioner’s expert. Since IPR depositions are treated differently...more
Did a trial court err in excluding evidence of subsequent formal diagnosis of autism when potentially alternative cause of current condition of minor? Julien Florez v. Northshore University Healthsystem d/b/a Evanston...more
Very often, uncertified expert reports are attached to certifications and courts are asked to accept them though there is no ability to cross examine the expert, etc. Sometimes, that even happens at a default or other...more
Retained experts play a role in most forms of litigation. Many practitioners are familiar with the general rules regarding discoverability of information held by experts: if they will testify at trial, their opinions and...more
This blog series has already introduced you to the experts you’re likely to see in patent cases. Here, we build on that foundation with a discussion of who can be an expert witness and an exemplary checklist of considerations...more