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Patents Expert Testimony

WilmerHale

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

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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

BakerHostetler

Patent Experts: No Ordinary Skill in the Art at the Time of Invention? No Problem!

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The hypothetical person with ordinary skill in the art will have a certain amount of requisite experience in the subject matter of the patent at the time of the invention of the patent....more

Akin Gump Strauss Hauer & Feld LLP

PTAB: Patent Drawings Without Precise Measurements May Be Relied Upon as Prior Art, but Only for What They Clearly Show

The Patent Trial and Appeal Board denied institution of an inter partes review petition because a prior art patent figure did not provide exact dimensions, and therefore could not meet the relevant claim limitation.  On...more

Baker Botts L.L.P.

Intellectual Property Report - August 2024

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Be an Expert: Precedential PTAB Decision on Conclusory Expert TestimonyStutti TilwaA recent precedential decision from the Patent Trial and Appeal Board (“PTAB”) may serve as a warning for those parties who plan on relying on...more

Baker Botts L.L.P.

Be an Expert: Precedential PTAB Decision on Conclusory Expert Testimony

Baker Botts L.L.P. on

A recent precedential decision from the Patent Trial and Appeal Board (“PTAB”) may serve as a warning for those parties who plan on relying on expert declarations in their inter partes reviews (“IPR”). On August 24, 2022, the...more

Farella Braun + Martel LLP

What Have We Learned From the First Six Months Under the New Federal Rule of Evidence 702?

As patent practitioners know, Daubert motions can be some of the most hotly contested and pivotal motions in the life of a patent case. These motions are used to exclude testimony from an opponent's expert witness, usually on...more

McDermott Will & Emery

The $X Factor: Demystifying Damages Calculations

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit affirmed a district court’s decision to deny a defendant’s motion for a new trial on damages, finding that the plaintiff’s damages expert sufficiently showed that prior license...more

BakerHostetler

Damages Experts: Has the Federal Circuit Lowered the Admissibility Standard?

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Damages experts in patent cases have a tough task. They must construct a hypothetical negotiation between the parties that would have taken place just before the alleged infringement started. And the goal of this hypothetical...more

Akin Gump Strauss Hauer & Feld LLP

District Court Precludes Experienced Patent Attorney from Testifying as Expert Based on Lack of Pertinent Technical Expertise

A district court recently precluded a patent attorney from testifying as an expert in a patent infringement lawsuit where the proposed expert lacked the requisite technical expertise to assist the trier of fact in...more

McDermott Will & Emery

Is Evidence of All Claimed Elements in Prior Art Enough? Not Without Motivation to Combine

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

Jones Day

PTAB Issues Sanctions for Attempted Extortion During “Settlement Negotiations”

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Director Vidal recently issued sanctions against OpenSky Industries (“OpenSky”) for attempted extortion during settlement negotiations and abuse of the IPR process for US Patent 7,725,759 and awarded $413,264.15 to VLSI...more

Axinn, Veltrop & Harkrider LLP

Old Tricks/Bad Habits at the Federal Circuit

The Federal Circuit used to get a lot of flak for failing to defer to factual findings of the tribunal it was reviewing. My (highly unscientific) sense is that such criticism has eased somewhat, but I was reminded of it when...more

Manatt, Phelps & Phillips, LLP

Patent Office Director Designates Precedential Opinion on IPR Expert Evidence/Testimony

In Xerox Corp. v. Bytemark, Inc., the Director of the U.S. Patent and Trademark Office made precedential a prior decision of the Patent Trial and Appeal Board (the Board) over when an expert declaration from an inter partes...more

Fish & Richardson

Amended FRE 702 on Expert Testimony Effective December 1, 2023

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Experts play a key role in patent litigation as they explain complex technical issues including infringement, validity, and damages to judges and juries. The persuasiveness of their testimony can often mean the difference...more

Knobbe Martens

Federal Circuit Review - October 2023

Knobbe Martens on

Substantial Evidence in Determining Obviousness - In Schwendimann v. Neenah, Inc, Appeal No. 22-1335, the Federal Circuit held that the PTAB’s finding on obviousness is supported by substantial evidence that a skilled...more

Sheppard Mullin Richter & Hampton LLP

Cyntec Company, Ltd. v. Chilisin Electronics Corp., Chilisin America Ltd. Nos. 2022-1873, (Fed. Cir. October 16, 2023)

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

Axinn, Veltrop & Harkrider LLP

A Tale of Two Experts

It was a tough day for opposing patent damages experts in Ecolab Inc. v. Dubois Chemicals, Inc., as Judge Andrews of the District of Delaware granted Daubert motions directed to both experts' reasonable royalty opinions. The...more

McDermott Will & Emery

No Money, Mo’ Problems: Speculative Damages Award Cannot Stand

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The US Court of Appeals for the Federal Circuit upheld a district court’s claim construction and jury instructions but reversed a premature judgment as a matter of law (JMOL) on obviousness and an imprecise damages award....more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - October 2023 #3

Cyntec Company, Ltd. v. Chilisin Electronics Corp., Appeal No. 2022-1873 (Fed. Cir. Oct. 16, 2023) In this week’s Case of the Week, the Federal Circuit reversed and remanded a California district court’s judgment as a...more

Akin Gump Strauss Hauer & Feld LLP

Results from Phase I and II Clinical Trials and Pending Phase III Clinical Trial Insufficient to Render Obvious Method of Treating...

In an ANDA case in the District of Delaware, the court has rejected an obviousness challenge to a patented method of increasing survival in patients having prostate cancer. The court found that early clinical trial results...more

McCarter & English, LLP

Patent Office Cancels Patents for Inadequate Voluntary Disclosure in IPRs

Inter partes reviews (IPRs) are litigation-like procedures held before the Patent Trial and Appeal Board (PTAB) of the United States Patent and Trademark Office that are used to challenge the validity of patents. Typically,...more

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

PTAB Strategies and Insights Newsletter - May 2023: Case Highlights: PTAB Precedential and Informative Decisions, Director Review...

This recurring feature highlights any new PTAB precedential and/or informative decisions, any new substantive Director review decisions, and any new substantive decisions issued by the Precedential Opinion Panel (POP). The...more

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

PTAB Strategies and Insights Newsletter - May 2023: Kyocera and the Brewing Debate Over Expert Qualifications at the PTAB

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

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

PTAB Strategies and Insights Newsletter - May 2023

The PTAB Strategies and Insights newsletter provides quarterly updates and insights into how best to handle PTAB trial proceedings at the USPTO. It is designed to increase return on investment for all stakeholders looking at...more

McDermott Will & Emery

Breaking Up Is Hard to Do: Validity Upheld Based on Expert Separation Testimony

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The US Court of Appeals for the Federal Circuit affirmed a district court decision finding that two patents covering enantiomerically pure compositions of the psoriasis drug Otezla® (apremilast) were valid and one patent...more

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