Expert Analysis

• Fed. Circ. In November: Looking For Patent 'Blaze Marks'

  

  The Federal Circuit's recent decision in Duke v. Sandoz serves as a warning that when patentees craft claims, they must provide adequate "blaze marks" that direct a skilled artisan to the specific claimed invention, and not just the individual claimed elements in isolation, say attorneys at Knobbe Martens.

• Examining Privilege In Dual-Purpose Workplace Investigations

  

  The Sixth Circuit's recent holding in FirstEnergy's bribery probe ruling that attorney-client privilege applied to a dual-purpose workplace investigation because its primary purpose was obtaining legal advice highlights the uncertainty companies face as federal circuit courts remain split on the appropriate test, say attorneys at Proskauer.

• Opinion

  The Case For Emulating, Not Dividing, The Ninth Circuit

  

  Champions for improved judicial administration should reject the unfounded criticisms driving recent Senate proposals to divide the Ninth Circuit and instead seek to replicate the court's unique strengths and successes, says Ninth Circuit Judge J. Clifford Wallace.

• Why 'Baby Shark' Floundered In Foreign Service Waters

  

  The Second Circuit recently ruled that the "Baby Shark" company couldn’t use email to serve alleged infringers based in China under an international agreement prohibiting such service, providing several important lessons for parties in actions involving defendants in jurisdictions unwilling or unable to effectuate efficient service, say attorneys at Greenspoon Marder.

• How Chinese Utility Models Fit Into Global IP Strategies

  

  Recent guidelines from the China National Intellectual Property Administration put the spotlight on the value of Chinese utility models — especially for device-focused innovations — and the interplay between utility models and conventional Chinese patents, say attorneys at Foley & Lardner.

• Series

  Muay Thai Makes Me A Better Lawyer

  

  Muay Thai kickboxing has taught me that in order to win, one must stick to one's game plan and adapt under pressure, just as when facing challenges by opposing counsel or judges, says Mark Schork at Feldman Shepherd.

• Higher Expectations For 'Schedule A' IP Suits On The Horizon

  

  Two 2025 rulings may reflect a growing judicial discomfort with the current state of Schedule A litigation — intellectual property lawsuits that typically involve brand owners suing multiple defendants doing business on e-commerce platforms — and that evidentiary submissions and temporary restraining order requests may face more rigorous review, says Dylan Scher at Quinn Emanuel.

• Series

  Law School's Missed Lessons: Intentional Career-Building

  

  A successful legal career is built through intention: understanding expectations, assessing strengths honestly and proactively seeking opportunities to grow and cultivating relationships that support your development, say Erika Drous and Hillary Mann at Morrison Foerster.

• Trending At The PTAB: The Policies That Are Redefining IPR

  

  The evolution of the Patent Trial and Appeal Board's inter partes review institution regime last year, coupled with the policy considerations behind that evolution, marks a shift toward greater gatekeeping of the U.S. Patent and Trademark Office's resources and patent enforcement rights, say attorneys at Finnegan.

• Reviewing 2025's Artificial Intelligence Disputes Over IP

  

  2025 brought the first major fair use rulings involving generative artificial intelligence, and in 2026 courts will weigh in on more discovery disputes, renewed motions to dismiss, class certification challenges and fair use defenses that could shape the course of future AI litigation, say attorneys at Debevoise.

• Trending At The PTAB: The Journey Of IPR Institution In 2025

  

  Over the course of 2025, inter partes review institution at the Patent Trial and Appeal Board evolved into a more restrictive, policy-driven regime with reshaped discretionary briefing and assessment, and increasing procedural requirements, say attorneys at Finnegan.

• 4 Developments That Defined The 2025 Ethics Landscape

  

  The legal profession spent 2025 at the edge of its ethical comfort zone as courts, firms and regulators confronted how fast-moving technologies and new business models collide with long-standing professional duties, signaling that the profession is entering a period of sustained disruption that will continue into 2026, says Hilary Gerzhoy at HWG Law.

• 5 Trade Secret Developments To Follow In 2026

  

  Watch for major developments in trade secret law this year, especially as courts clarify the reach of U.S. law internationally, the availability of trade secret damages and more, say attorneys at Faegre Drinker.

• Navigating AI In The Legal Industry

  

  As artificial intelligence becomes an increasingly integral part of legal practice, Law360 guest commentary this year examined evolving ethical obligations, how the plaintiffs bar is using AI to level the playing field against corporate defense teams, and the attendant risks of adoption.

• Opinion

  Judges Carry Onus To Screen Expert Opinions Before Juries

  

  Recent Second Circuit arguments in Acetaminophen Products Liability Litigation implied a low bar for judicial gatekeeping of expert testimony, but under amended Rule 702 of the Federal Rules of Evidence, judges must rigorously scrutinize expert opinions before allowing them to reach juries, says Lee Mickus at Evans Fears.