David C. Radulescu

I'll research this attorney's professional background before drafting.

David C. Radulescu, Ph.D. — Radulescu LLP (New York, NY)

Focus areas. Radulescu's practice is centered on patent litigation in LED and compound-semiconductor technology — crystal growth, LED design, driver circuitry, and lighting fixtures — together with adjacent electronics. His Ph.D. work at Cornell was in semiconductor devices and materials, and his litigation docket has spanned silicon carbide and gallium nitride semiconductors, flash memory, hard-disk-drive components, optical communications, and 3G/WCDMA cellular technology. There is no evidence in the record of pharmaceutical, life-sciences, or Wi-Fi/standards-essential patent work; the profile is hardware and electrical-engineering driven. Most matters are multi-patent, multi-forum disputes (district court, ITC Section 337, and the PTAB) rather than single-patent suits. Firm marketing and press interviews (Inside Lighting, 2023) describe him as having litigated more LED patent cases than any other U.S. lawyer — a self/press characterization, not an independently verified figure.

Side preference. He is genuinely two-sided rather than aligned with either operating companies or NPEs. The tracked docket is an even 3 plaintiff / 3 defendant, and those six entries resolve into two mirror-image LED disputes in which he holds both postures simultaneously: AGS Lighting Management v. Jesco Lighting (defendant) alongside Jesco Lighting Group v. AGS Lighting Management (plaintiff); and Feit Electric v. Savant Technologies d/b/a GE Lighting (defendant) alongside Savant Technologies v. Feit Electric (plaintiff). He has represented large LED manufacturers (Cree, Seoul Semiconductor, Samsung, Cornice) on defense and as offensive enforcers of client portfolios, and his firm's own description notes it litigates "both as plaintiff's and defendant's counsel."

Firm context. Radulescu is founder and partner of Radulescu LLP, a patent-litigation boutique with offices in New York City and Texas, founded roughly a decade before 2023. Before launching the firm he was a partner at Quinn Emanuel Urquhart & Sullivan (joined the New York office in October 2010) and previously a partner at Weil, Gotshal & Manges, where he began as a patent litigation associate. Earlier in his career he prosecuted patent applications before the USPTO.

Notable cases and outcomes. His most frequently cited win is The Fox Group v. Cree (E.D. Va.), where he was lead counsel for Cree and obtained summary judgment of patent invalidity on the eve of trial, affirmed on appeal to the Federal Circuit. He also reports prevailing on 22 of 23 claim-construction disputes for Cree in the BridgeLux v. Cree litigation and 10 of 10 constructions for Seoul Semiconductor in Seoul Semiconductor v. Nichia. On the current tracked docket, his most significant recent result is the consolidated IPR brought by Savant/GE Lighting and LEDVANCE against Feit Electric's U.S. Patent No. 8,604,678 (white LED filament): the PTAB's August 28, 2026 final written decision held every challenged claim unpatentable and denied Feit's contingent motion to amend, with the parallel E.D. Ky. litigation stayed pending Feit's Director Review request. In Jesco Lighting Group v. AGS Lighting Management (IPR2025-01328), the Board instituted trial in January 2026 on AGS's linear-LED fixture patent.

PTAB / IPR experience. Yes — this is a core part of his practice, and he appears on both sides. He was lead counsel for petitioner WAC Lighting in a seven-petition IPR cluster against Philips LED patents (IPR2015-1287 et seq.), lead counsel for petitioners in the Feit '678 IPRs, lead counsel for petitioner Jesco, and lead counsel for patent owner Sensor Electronic Technology in Lite-On v. SETi (IPR2022-00780).

Bar / education. B.S., Case Western Reserve University; Ph.D., electrical engineering, Cornell University; J.D., Columbia University School of Law (1991), co-recipient of the Harper Prize in Intellectual Property Law. Admitted in New York (1992); registered patent attorney, USPTO Reg. No. 36,250; admitted to the Federal Circuit.

Note: the six tracked appearances are a subset of the roughly 50+ matters shown on his Law360 firm profile and the representations listed on his firm bio; docket-level outcomes beyond those described above are not independently verified here.