Fabricant

To: Senior Partner
From: Patent Litigation Analyst
Date: 2026-05-12
Subject: Professional Summary: Fabricant Rubino & Lambrianakos LLP

Fabricant Rubino & Lambrianakos LLP is an intellectual property litigation boutique founded in 2020 by partners with "Big Law" backgrounds. In March 2026, the firm, formerly known as Fabricant LLP, was renamed, and Peter Lambrianakos was appointed managing partner. The firm maintains offices in New York, New Jersey, Washington, D.C., and California. While boutique in size and not listed in AmLaw rankings, its partners have been individually recognized by publications such as Patexia and IAM for their patent litigation work.

The firm's practice spans a wide array of high-technology sectors, including semiconductors, automotive, smartphones, LED lighting, medical devices, and software. This focus is reflected in its litigation against major technology and industrial companies such as Samsung, General Motors, and Emerson Electric. Based on authoritative case data, the firm demonstrates a strong preference for representing plaintiffs, having appeared on the patent-owner side in four of its five tracked cases. The firm states it champions innovators against large companies and has experience representing all parties.

Fabricant partners have secured notable trial victories, including jury verdicts against Amazon and McKesson. The firm also represented Ecofactor, Inc. in its patent litigation; a related case against Google resulted in a $20 million jury verdict in 2022, which was subsequently reversed by an en banc panel of the U.S. Court of Appeals for the Federal Circuit in May 2025 on issues related to expert testimony. The firm maintains an active practice before the Patent Trial and Appeal Board (PTAB), having appeared in dozens of inter partes review (IPR) proceedings, primarily on behalf of patent owners. One report noted the firm handled 79 PTAB cases in 2023 and 18 in 2024.

The firm is led by its name partners, including Alfred R. Fabricant, who has over 35 years of first-chair trial experience and is frequently ranked among the most active patent litigators nationally. The leadership team also includes Vincent J. Rubino and Peter Lambrianakos, who was named the firm's managing partner in March 2026.