Eugene Ledonne

I'll research this attorney before drafting.

Let me verify his current firm, the tracked case, and his PTAB work.

Let me check his firm bio, the NexRF district court outcome, and the W.D. Va. matter.

Eugene LeDonne — patent litigator, Haug Partners LLP (New York)

Specialty / focus. LeDonne's practice spans intellectual property litigation at the trial and appellate levels, with patent work alongside trademark, copyright, trade-secret, and related antitrust claims, plus patent prosecution and opinion counseling. His firm bios describe the technical range of that work as optics, semiconductors, communications, medical devices, imaging, internet applications, and software — consistent with his B.S. in mechanical engineering. The single tracked appearance (eyewear/mechanical-optics patents) fits that profile, and his more recent public docket presence is in software/gaming patents, including location-based mobile gaming technology in the NexRF matters.

Side preference. The tracked data is a single appearance, on the defense side (listed for Defendant in Aspex Eyewear, Inc. et al. v. Altair Eyewear, Inc., at Reed Smith), so it isn't a reliable indicator of a side preference on its own. Web-searchable records show substantial patent-owner/plaintiff-side work as well: he argued NexRF Corp. v. Playtika Ltd. for plaintiff-appellant NexRF at the Federal Circuit, and he serves as lead counsel for patent owner NexRF in multiple IPRs. The fair reading is that he works both sides, with significant patent-owner representation.

Firm context. LeDonne is a partner at Haug Partners LLP (formerly Frommer Lawrence & Haug) in New York, where public sources place him since roughly 2010. Before that he was a partner at Reed Smith LLP for over nine years and led that firm's New York intellectual property group — the firm and role reflected in the tracked case. Earlier positions include patent counsel at Westinghouse Electric Corporation (1993–1995), and associate roles at Sughrue, Mion, Zinn, Macpeak & Seas (1991–1993) and McAulay, Nissen, Goldberg & Kiel (1995). (Note: some directory profiles still list Reed Smith and have not been updated.)

Notable matters. In Aspex Eyewear v. Altair Eyewear (eyewear patents with magnetic auxiliary lenses, S.D.N.Y. → D. Mass.), he appeared for defendant Altair; the case had been to the Federal Circuit once before (2008, partial reversal on the '054 patent), and in the 2011 "case stated" ruling the district court granted Altair summary judgment of non-infringement on all three asserted patents. He argued the Federal Circuit appeal in NexRF Corp. v. Playtika Ltd. / NexRF Corp. v. Aristocrat International (Fed. Cir. Nos. 2021-2147, -2219), which was affirmed by Rule 36 judgment on May 13, 2022.

PTAB / IPR. Yes — he appears as lead counsel for patent owners, including in Playtika Ltd. v. NexRF Corp. (IPR2021-00951/-00953) and the related Aristocrat joinder proceedings (IPR2022-00408/-00409), where he is listed as lead counsel with USPTO Reg. No. 35,930.

Bar / education. J.D., American University Washington College of Law (1991); B.S. mechanical engineering (magna cum laude) and M.B.A., West Virginia University. Admitted in Pennsylvania (1991), New York (1998), before the USPTO, the Federal Circuit, and the S.D.N.Y./E.D.N.Y.

Caveat: the tracked case list contains only one appearance for this name, and several directory sources are dated or stale; results above are drawn from court opinions, PTAB filings, and firm/directory listings, and where an outcome was not verifiable I have not asserted one.