Ari Jason Jaffess

Specialty / focus. Ari Jason Jaffess is a New York IP litigator whose practice centers on patent litigation in U.S. district courts, the PTAB, the ITC, and the Federal Circuit. His firm bio describes technology coverage spanning software, business methods, electronics, mechanical devices, medical devices, and chemistry, with a computer-science background that maps to his software-heavy docket (database/user-interface, streaming-media, and networking patents). In the tracked roster he appears on the plaintiff side in one matter (Liston Abramson, styled "of counsel"), but his publicly docketed work is two-sided: he asserts patents for patent owners (Kaufman v. Microsoft; WAG Acquisition's streaming-media campaign against Amazon, Google, Disney, and Netflix) and defends accused infringers (an ITC investigation for a vaping-hardware company; LifeStation in e-Beacon LLC v. LifeStation, Inc., S.D.N.Y. 2026).

Firm context and notable cases. He practices at Liston Abramson LLP in New York, where the firm website lists him as a partner (the tracked case roster describes him as of counsel); PTAB filings show he previously practiced with Ronald Abramson at Lewis Baach PLLC. His headline result came in Kaufman v. Microsoft Corp. (S.D.N.Y.), where he was on the team that won a $7 million jury verdict for patentee Michael Kaufman on U.S. Patent No. 7,885,981 (automatic generation of user interfaces for relational databases); the Federal Circuit affirmed infringement and validity and reversed the denial of prejudgment interest (No. 21-1634). He argued Makor Issues & Rights Ltd. v. Google LLC (Fed. Cir. No. 19-1082), an IPR appeal affirmed in 2019, and has appeared in WAG Acquisition's Federal Circuit appeals from PTAB rulings, which were affirmed by Rule 36 judgment in March 2026 (No. 24-1627).

PTAB / IPR. Jaffess appears regularly in IPR/PGR work on both sides: lead petitioner's counsel in PGR2021-00012 (Cast Lighting LLC v. Wangs Alliance Corp.) and lead patent-owner counsel in IPR2024-01362 (Apple Inc. v. Varia Holdings LLC) and IPR2025-01019 (RE Secured Networks, LLC), the latter including discretionary-denial briefing before the Director.

Bar / education. Admitted in New York (2008) and New Jersey; USPTO Reg. No. 74,558; admitted to the Federal Circuit and the S.D.N.Y., E.D.N.Y., and D.N.J. Education: NYU School of Law (J.D., 2007); University of Pennsylvania (B.S.E. computer science and B.A. economics, 2000).