Denise M. De Mory

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Denise M. De Mory — Patent Litigation Practice Summary

Specialty / focus. De Mory is a first-chair patent trial lawyer whose practice centers on technology-heavy disputes: mobile/telecommunications standards (she led the 3G power-control case for TOT Power Control against Apple), semiconductors and memory (graded-dopant-region patents in the Greenthread family; magnetics/hard-drive "uniaxial anisotropy" patents for Lambeth Magnetic Structures against Seagate), consumer electronics, and software/digital technologies. Public firm profiles also list electronic coupon-clearing/fintech-type patent enforcement (Inmar), university and research-institution innovation, and life sciences among the firm's sectors. Her background includes antitrust litigation — she served on the DOJ trial team in United States v. Microsoft, hired from a litigation boutique for technical and civil-litigation expertise.

Side preference. Her verifiable record is overwhelmingly plaintiff / patent-owner side — universities, individual inventors, start-ups, and small patent-owning companies asserting against much larger operating companies (Apple, Samsung, LG, Seagate). Bunsow De Mory describes itself as a plaintiff-side patent boutique. The tracked dataset here shows the opposite tilt — 0 plaintiff-side and 1 defendant-side appearance (as of counsel) — in Greenthread, LLC v. ON Semiconductor Corp. (D. Del. No. 23-443-RGA). That is a lone entry and an outlier relative to her public profile; note a caveat: I could not independently confirm that appearance in the publicly visible portions of the docket, which show Greenthread represented by Farnan LLP and McKool Smith and onsemi represented by pro hac vice counsel from other firms. Treat the defendant-side label as the dataset's record for her one tracked appearance, not as a description of her practice as a whole.

Firm context. De Mory is managing partner and co-founder of Bunsow De Mory LLP (Redwood City, CA, with a northern Virginia office), an IP litigation boutique she co-founded around 2012. Prior firm history is not well documented in public ranking profiles; the only clearly sourced pre-firm stint is her DOJ antitrust trial work. The firm states its focus is plaintiff-side patent cases and that it has secured more than $250M in verdicts and settlements in recent years.

Notable cases / outcomes.

• TOT Power Control, S.L. v. Apple (D. Del.) — June 2025 jury verdict of $110,738,008 ($0.25 running royalty) after a three-day trial; jury found infringement and rejected Apple's invalidity defense. Ranking sources describe it as among the largest U.S. patent verdicts of 2025 (top-10 nationally; second- or third-largest in Delaware depending on the source). De Mory reportedly secured the verdict after the client's damages theory was excluded on Daubert. Related LG and Samsung actions are pending.
• Lambeth Magnetic Structures LLC v. Seagate (W.D. Pa., Fed. Cir.) — Federal Circuit reversed the district court's claim construction and vacated the jury's non-infringement verdict; retrial pending with De Mory as lead trial counsel.
• Inmar Brand Solutions v. Quotient Technology (D. Del.) — defeated one IPR at institution and obtained a favorable July 2025 settlement.
• Reported earlier results include a $38M jury verdict (Sept. 2023) and a $61M patent verdict, per firm/ranking descriptions.
• Cisco Systems v. Ramot at Tel Aviv University (D. Del.) — represents the patent owner Ramot.

PTAB / IPR. She appears before the PTAB and the Federal Circuit, and her firm was ranked by Patexia as the best-performing PTAB firm for July 2020–June 2025; individual matters include the Inmar IPR non-institution.

Bar / education. Admitted to the California Bar in 1993; J.D., The John Marshall Law School (Chicago); B.A., University of Illinois. Court admissions include the U.S. Supreme Court, Federal Circuit, Ninth Circuit, and multiple California district courts plus E.D. Tex.

Sources: Bunsow De Mory firm site; Chambers USA; IAM Patent 1000; Benchmark Litigation; Managing IP/IP Stars; Best Lawyers; California State Bar licensee profile. Individual client testimonials and unverifiable self-reported verdict figures are attributed to those ranking sources rather than independently confirmed.