Podcast - Part II: The Do’s and Don’ts of Demonstratives
Podcast - Persistence and Determination
Podcast - How Do You Define Success?
Podcast - Part II: Being an Expert Is a Lonely Business
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 - Finding the Balance
Podcast - A Tortured Journey with the Lying Witness
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
In a mixed ruling on evidentiary exclusions and damages methodology, the US Court of Appeals for the Federal Circuit affirmed in part, reversed in part, vacated in part, and remanded a district court’s decision that excluded...more
A Northern District of California judge recently granted a motion to reconsider his summary judgment ruling that defendant was barred from raising certain “device art” due to IPR estoppel under 35 U.S.C. § 315(e)(2). In the...more
In Jiaxing Super Lighting Elec. Appliance, Co. v. CH Lighting Tech. Co., Ltd, the Court of Appeals for the Federal Circuit reviewed the judgment in a patent infringement case involving three patents owned by Jiaxing Super...more
In a pivotal ruling for patent damages and standard-essential patent (SEP) litigation, the Federal Circuit vacated a $300 million award against Apple in a long-standing dispute with Optis Cellular Technology, LLC. See Optis...more
In EcoFactor, Inc. v. Google LLC, the en banc United States Court of Appeals for the Federal Circuit reversed a district court’s denial of a new trial on damages because EcoFactor’s expert’s opinion was unreliable under Fed....more
On May 21, 2025, the Federal Circuit en banc banished the notion that the reliability of an expert’s methodology under Federal Rule of Evidence 702 (“Rule 702”) is a question of weight, not admissibility. The en banc Court...more
In the first en banc decision for a utility patent case since 2018, the Federal Circuit reversed a district court's denial of a new trial on damages in EcoFactor, Inc. v. Google LLC and held that EcoFactor's damages expert's...more
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
On May 21, in EcoFactor, Inc. v. Google LLC, the Federal Circuit issued an en banc ruling in which the court remanded the case for a new trial on damages. In so doing, the Federal Circuit emphasized the role of the court in...more
Admissibility standards for patent damages experts has come under scrutiny. Previously, we highlighted the EcoFactor v. Google case regarding Google’s petition for rehearing en banc to address the admissibility of EcoFactor’s...more
The Federal Circuit issued its long-awaited en banc opinion in EcoFactor v. Google, which provides further clarity on the admissibility standards for damages experts under Rule 702. This decision reverses the original panel’s...more
In this edition of The Precedent, we outline the decision in Trudell Medical International Inc. v. D R Burton Healthcare LLC. The U.S. Court of Appeals for the Federal Circuit recently affirmed in part, reversed in part and...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 Federal Circuit rarely decides cases en banc. For example, in 2024, the Court only heard one en banc case. Stunningly, on September 25, 2024, the Federal Circuit granted Google’s petition for rehearing en banc in the case...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
Conflicting expert testimony constituted substantial evidence supporting the jury’s rejection of a reverse doctrine of equivalents argument....more
Steuben Foods, Inc. v. Shibuya Hoppmann Corp., No. 23-1790 (Fed. Cir. 2025) - On January 24, 2025, the Federal Circuit considered the “long mentioned but rarely applied” reverse doctrine of equivalents (“RDOE”) defense. ...more
The US Court of Appeals for the Federal Circuit ruled that the “substantially the same way” comparison in connection with a doctrine of equivalents (DOE) analysis involving a means-plus-function claim limitation should focus...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
The US Court of Appeals for the Federal Circuit reversed a Patent Trial & Appeal Board obviousness decision, finding that disclosure in the prior art of all recited claim elements across multiple references, without more,...more
This case is primarily about the Daubert standard as applied to expert testimony on damages. The Federal Circuit reversed the Northern District of California’s admission of expert testimony on damages, which relied on...more
Technical experts play a key role in patent litigation, including in PTAB litigation. Indeed, experts are often the only witnesses to provide testimony in PTAB proceedings, and final written decisions often hinge on which...more
As part of the recovery from the global COVID-19 pandemic, the U.S. Court of Appeals for the Federal Circuit took steps to return to normal operations. It began requiring live oral arguments in August 2022 and, by November,...more