Gregory S. Gewirtz

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Gregory S. Gewirtz — Partner, Lerner David LLP (Lerner, David, Littenberg, Krumholz & Mentlik), Cranford, NJ

Focus areas. Gewirtz has a broad IP practice centered on patent and trademark litigation and licensing, with subject-matter depth in electronics, mechanical and pharmaceutical technologies (Chambers USA, New Jersey IP, Band 3; IAM Patent 1000 recommended individual). His docket is heavily consumer-electronics: flat-panel/display and backlighting technology, optical disc players (DVD/Blu-ray/PlayStation), thermal management, haptics/controllers, and audio signal processing — noise cancellation, microphone arrays and beamforming. That audio/display profile lines up with his tracked appearances: the Sony Delaware Display Group matter (light-redirecting film / display patents) and the Sony–Jawbone Innovations IPR family (headset noise-cancellation and adaptive-null patents). Chambers specifically cites electronic, mechanical and pharmaceutical industries, though the searchable litigation record skews electronic.

Side preference. The tracked data (2 appearances: 1 plaintiff, 1 defendant, both as lead counsel) is a very small sample, but the searchable record shows a strong defense-side orientation: Gewirtz is long-time outside patent litigation counsel to Sony entities, defending operating companies against NPE/PAE assertions. His plaintiff-side/affirmative work appears mainly in the form of IPR petitions and declaratory-type postures on behalf of Sony (e.g., Sony Corp. v. Delaware Display Group LLC, where Sony was the petitioner challenging DDG's patent; the related district case was Delaware Display Group LLC and Innovative Display Technologies LLC v. Sony Corp., D. Del. 1:13-cv-02111, in which Sony was a defendant). Net: he primarily defends operating companies; he is not a plaintiff-side NPE prosecutor.

Firm context and notable matters. He has practiced at Lerner David (an IP-only boutique founded in 1969) throughout the searchable record; no prior firm is documented in the sources reviewed. Representative results attributed to him on the firm's profile and in filings: leading Sony and a joint defense group in winning a §1404(a) transfer of the VoxPath RS optical-disc case out of the Eastern District of Texas to the District of New Jersey (Jan. 2012), followed by an order striking VoxPath's infringement contentions as to hundreds of accused products (Nov. 2012); winning transfer of Orinda Intellectual Properties from E.D. Tex. to N.D. Cal. (2009) and a stay pending reexamination (2010); the ARRIS v. Sony ITC investigation (337-TA-1060); and the Immersion Corp. v. Sony Computer Entertainment JAMS arbitration over PlayStation 4/DualShock 4 royalty obligations. In the New Jersey Law Journal's 2017 Litigation Department of the Year coverage, Gewirtz described a PTAB win in which he and Russell Faegenburg invalidated two patents asserted against Sony using the same prior art that another firm had unsuccessfully advanced before the same panel. Several 2025 E.D. Tex. NPE suits against Sony Electronics (Volteon LLC, Control Sync Systems, Televo LLC) show him continuing in that defense role, with transfers to D.N.J. and voluntary dismissals.

PTAB / IPR experience. Yes — he appears regularly as lead counsel in AIA proceedings. He was lead counsel for Sony in Sony v. Ancora Technologies (IPR2021-00663, U.S. Pat. 6,411,941, joinder), the Sony Electronics v. Jawbone Innovations IPR family (including IPR2023-01110/01117/01119/01128/01228/01229/01166 on U.S. Pats. 7,246,058, 8,019,091, 8,321,213, 8,467,543 and 8,503,691), and Sony Corp. v. Delaware Display Group (IPR2015-00757, U.S. Pat. 7,914,196, terminated on settlement in Aug. 2015). The Jawbone proceedings were instituted and then terminated post-institution on settlement (2024).

Bar / education. Registered to practice before the USPTO (Reg. No. 36,522) and admitted in New Jersey. Best Lawyers lists a J.D. from Pace University (1992); Super Lawyers lists Pace Law School class of 1991 with bar admission in 1991 — the sources conflict slightly on dates, so treat the year as approximate. Recognized in The Best Lawyers in America since 2021 for Patent Litigation and Patent Law.

Note on disambiguation: a different Gregory Gewirtz is an M&A/corporate partner at Linklaters in New York; that individual is not this attorney. Sources: firm profile and news items at lernerdavid.com; Chambers USA; IAM Patent 1000; Best Lawyers and Super Lawyers profiles; PTAB filings (IPR2015-00757, IPR2021-00663, IPR2023-01110/01119/01128/01228); and federal docket entries.