Ari Feinstein

Associate

Washington DC

202-640-6400

ari.feinstein@knobbe.com

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Overview

Experience

Resources

Ari Feinstein is a litigation associate in the firm’s Washington, D.C., office. Ari’s practice focuses on patent litigation, trademark litigation, and trademark oppositions.

Ari has experience working on intellectual property adversarial matters in a wide variety of industries, including consumer electronics, pharmaceuticals, medical devices, food and beverage, fitness and nutrition, semiconductors, HVAC, and hydrometallurgy.

During law school, Ari was an executive editor and later the Managing Editor of the Journal of Law and Technology. He also participated in the school’s Patent & Licensing Clinic. Ari received his Bachelor’s Degree in Chemistry from Case Western Reserve University.

Ari worked as a summer associate at the firm in 2016 and joined the firm in 2017.

Education

University of Virginia School of Law (J.D., 2017), Virginia Journal of Law and Technology, Managing Editor

Case Western Reserve University (B.A. Chemistry, 2011), cum laude

University of Virginia School of Law

Case Western Reserve University

District of Columbia Bar

State Bar of Virginia

U.S. Court of Appeals for Veterans Claims

U.S. Patent and Trademark Office

Biosimilars

Biotechnology

Chemical

Pharmaceuticals

Practice Areas

Data Privacy & Security

Hatch-Waxman Litigation

PTAB IPR & Post-Grant Proceedings

Novo Nordisk Inc. et al. v. Orbicular Pharmaceutical Tech. Pvt. Ltd. et al., 22-00856 (D. Del. 2024)

Represented the Cipla and Orbicular defendants in a patent infringement action on patents relating to injection devices and GLP-1 agonist formulations (used in Novo’s Saxenda® and Victoza® products). Obtained a favorable case-dispositive settlement for client prior to trial.

Belparts Group, N.V. v. Belimo Automation AG et al., 3:21-CV-00334 (D. Conn. 2022)

Represented Belimo in a patent infringement action relating to automatic electronic control valves used in HVAC systems. Obtained a favorable case-dispositive settlement.

Vocalife LLC v. Amazon.com, Inc. et al., 2:19-CV-00123 (E.D. Tex.), rev’d, No. 2021-1937 (Fed. Cir. 2022)

Represented Amazon in a patent infringement action relating to the Amazon Echo devices. After a jury verdict that a patent on a microphone system was infringed by the sale of Amazon’s Echo products, the Knobbe Martens team obtained a complete reversal that the Amazon Echo devices do not infringe any patent claim.

Pacific Packaging Concepts, Inc. v. Nutrisystem, Inc. et al., 2:19-cv-04755 (C.D. Cal. 2022)

Successfully enforced Pacific Packaging’s FRESH START trademark against Nutrisystem resulting in favorable settlement.

Vital Pharmaceuticals, Inc. v. Monster Energy Co. et al., 553 F. Supp. 3d 1180 (S.D. Fla. 2021), aff’d, No. 21-13264 (11th Cir. 2022)

Successfully defended Monster Energy in a trademark and trade dress infringement action. After a bench trial, obtained a judgment of no trade dress infringement by selling the REIGN energy drinks. On appeal, obtained an affirmance that the district court did not deny plaintiff its right to trial by jury.

In re Sleep-Disordered Breathing Treatment Mask Systems and Components Thereof, USITC Inv. No. 337-TA-1134 (2019)

Represented Fisher & Paykel Healthcare in action before the International Trade Commission relating to patient interfaces for sleep apnea therapy.

King v. O’Rourke, Case No. 17-4433 (2018):

Represented American Service Veteran in Appeal from the Board of Veterans’ Appeals for denial of service benefits to the United States Court of Appeals for Veterans Claims. Successfully obtained favorable remand for Veteran.

Articles

Co-Author, "Patent Venue, and How It Works in Abbreviated New Drug Application Litigation," Intellectual Property & Technology Law Journal (October 2023)

Co-Author, "Federal Circuit: Trademark Decisions Rendered by International Trade Commission Do Not Have Preclusive Effect," World Trademark Review (May 20, 2019)

Co-Author, "The Supreme Court Holds that Non-Public Sales May Trigger the "On Sale" Bar Under the America Invents Act," Knobbe Martens Firm Alert (January 22, 2019)

Co-Author, "Patent Protection for Cannabis?," Pharmaceutical Executive (November 12, 2018)

Co-Author, "Intellectual Property in Nutraceuticals: Patents, Trademarks, and Trade Secrets," Nutritional Outlook (August 14, 2018)

Co-Author, "Supreme Court to Review Post-AIA-On-Sale Bar," Intellectual Property Strategist (August 2, 2018)

Litigation Blogs

Biotechnology Blog