Patent litigation attorney
David Yohai
1 tracked appearance — 1 plaintiff · 0 defendant.
Specialty & background
Summary — David Yohai (David L. Yohai), Weil, Gotshal & Manges
Specialty / focus. Yohai is a senior partner in Weil's Complex Commercial Litigation practice (a group he co-headed for six years) and Co-Head of the firm's Insurance Litigation practice. He is a generalist commercial trial lawyer with substantial IP exposure — copyright, trademark, trade-secret, and privacy matters — rather than a dedicated patent litigator. His deepest expertise is media & entertainment, antitrust, and class-action defense (notably VPPA/CIPA privacy suits) for clients such as Warner Bros. Discovery, Paramount, ESPN/Disney, and Univision. His one tracked patent matter, Microsoft Corp. et al. v. InterDigital Patent Holdings Inc. (plaintiff side, Weil, role of Counsel), sits outside his usual lane: it concerns InterDigital's wireless/video standard-essential patents and FRAND obligations. I could not independently verify details of his specific role or any outcome in that case.
Side preference / firm context. His overall practice skews heavily defense-side — he has spent three-plus decades defending operating companies in jury trials, arbitrations, and class actions. The single tracked appearance is plaintiff-side (1 plaintiff / 0 defendant), but that is too thin a sample to characterize a plaintiff-side orientation; it likely reflects a one-off commercial-IP engagement for Microsoft. Available sources (Weil bio, Martindale, court filings) indicate he has practiced at Weil Gotshal in New York throughout his career, with no prior firms surfaced.
Notable matters / PTAB. Headline results from web sources: a published 2–1 Sixth Circuit win for Paramount Global narrowing VPPA "consumer" standing (creating a circuit split; named a 2025 Law360 Media & Entertainment MVP); lead counsel for Warner Bros. Discovery in the NBA media-rights litigation, resolved by a November 2024 global settlement that kept "Inside the NBA" alive; and the A&E "Live PD" cloning dispute against Reelz. No PTAB/IPR or PGR activity appears anywhere in his record; his practice is district-court and appellate litigation.
Bar / education. Directory listings (Martindale/Prabook) show Princeton University (A.B.), New York University School of Law (J.D.), and New York bar admission in 1994; Weil's own bio does not publish these details, so treat them as directory-sourced.
Firms
Roles
- Counsel1