Mintz Levin

Firm overview. Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C. ("Mintz" or "Mintz Levin") is a full-service Am Law 100 firm headquartered at One Financial Center in Boston, with roughly 500–600 attorneys across offices in Los Angeles, New York, San Francisco, San Diego, Miami, Washington, D.C., and Toronto (firm site; Wikipedia; ICLG). It is a BigLaw general-practice firm rather than an IP boutique; its IP division spans 130+ professionals, including 40+ with PhDs (World IP Review 2025). Chambers USA ranks the firm Band 2 for Life Sciences: IP/Patent Litigation in California (2025).

IP litigation specialty and side preference. Mintz's patent practice covers high-stakes district-court litigation, Hatch-Waxman/ANDA cases, ITC Section 337 investigations, and post-grant proceedings, with particular depth in life sciences/pharma (bolstered by a 2024 lateral team from Proskauer led by Siegmund Gutman), standard-essential patent/5G telecom work (Ericsson, Netlist), and software/electronics (firm site; Chambers). The firm explicitly markets representation of "both sides of the v.," including NPE defense and patent monetization/enforcement. The tracked docket here captures one appearance — Parus Holdings, Inc. v. Google LLC — on the plaintiff side as co-counsel (Sean M. Casey, Michael J. McNamara), consistent with Mintz's sizable patent-enforcement and monetization practice; the firm's public record shows equally substantial defendant-side work, so a plaintiff/defendant split based on this small sample would be misleading.

Notable cases and outcomes. The tracked Parus v. Google matter (voice-browsing/voice-assistant patents, W.D. Tex./N.D. Cal.) ended in litigation between the firm and its former client: Parus filed a malpractice suit in the W.D. Tex. in October 2025 (1:25-cv-01722) alleging PTAB missteps invalidated a core patent, while Mintz sued in D. Mass. for $2M+ in unpaid success fees (Law.com Radar; JDJournal). Other verifiable highlights: a Mintz team led by Michael Renaud secured an ITC defense win for Juul Labs against Altria's NJOY vaporizer patents (named Am Law Litigation Daily "Litigator of the Week" runner-up); the firm obtained the first complete Federal Circuit reversal of an adverse IPR final written decision in Straight Path IP Group v. Sipnet EU S.R.O. (Fed. Cir. 2015) and defended Straight Path against 17 IPRs; it co-represented Amgen against Biocon (settled Sept. 2025); and it won a 2019 ITC determination for Netlist against SK hynix on standard-essential memory patents.

PTAB / IPR practice. Mintz has a notable, patent-owner-leaning post-grant practice. Patexia's 2024 PTAB Intelligence Report ranked the firm the 21st most active and 32nd best-performing firm representing patent owners (top 50 overall); Renaud ranked 55th most active patent-owner attorney and William Meunier 33rd best-performing (firm press release). The practice includes both IPR defense (Straight Path, SimpliVity, ParkerVision) and petitioner-side work (ACE Bed), with the firm historically claiming above-market patent-owner success rates.

Key partners / practice leaders. Michael T. Renaud — Member and Chair of the Intellectual Property Division, leader of the patent litigation and monetization practice; Siegmund "Sige" Gutman — Chair of Life Sciences Litigation and Co-Chair of Patent Litigation (joined from Proskauer in 2024); William A. Meunier — leading PTAB/IPR practitioner; and Sean M. Casey and Michael J. McNamara — the co-counsel on the tracked Parus v. Google matter (firm site; Patexia; World IP Review). Note: the firm's own site confirms these leadership roles; precise Am Law revenue figures were not independently verified for 2025 and are omitted here.