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Stay up to date with the latest legal developments, firm news, and practical insights from our team. Here you’ll find timely updates on IP law, thought leadership on emerging trends, and stories that showcase our work and community. Whether you’re looking for guidance, inspiration, or a closer look at our people in action, our News & Insights hub is your resource for what matters now in intellectual property.
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Next Stop: Softball Playoff City. Population: The Leason Ellis Monsters

Firm News July 18, 2024

Leason Ellis Enjoys the Corporate FunRun Westchester 5k

Firm News July 14, 2024

Leason Ellis Recognition in IAM Patent 1000 for 2024 Includes Ten Individual Attorneys

Recognition June 11, 2024

Marlene Sauer Represents Firm at Westchester County Board of Legislators’ Reception

Conferences and Events June 10, 2024

Leason Ellis Spices It Up for June Firm Luncheon

Firm News June 09, 2024

Matthew Frisbee to Speak on Strafford Webinar on ITU Trademark Applications

Firm News June 03, 2024

Leason Ellis Celebrates Administrative Professionals Day

Firm News May 02, 2024

Leason Ellis Among the Sponsors for the 2024 Regeneron Westchester Science & Engineering Fair (WESEF)

Firm News April 02, 2024

Leason Ellis Partners Yuval Marcus, Melvin Garner, and Lauren Emerson to Speak at ACC Event on Hot Topics in IP Law

Firm News April 02, 2024

Audrey Trace to Moderate NYIPLA Deposition Training CLE

Firm News March 06, 2024

Matthew Frisbee to Speak for Stafford on Proving Acquired Distinctiveness

Firm News March 06, 2024

Leason Ellis Highly Ranked in Latest World Trademark Review 1000

Recognition February 22, 2024

Melvin Garner to Speak at 2024 DEIA Colloquium for AIPLA

Firm News January 17, 2024

IAM 300 Global Leaders 2024 Interviews Elizabeth Barnhard

Firm News December 29, 2023

Leason Ellis Appoints Yuval H. Marcus as Managing Partner

Firm News December 29, 2023
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What Others
Say Matters

The voices of our clients, industry peers, and leading legal organizations tell the story of our firm’s impact. Their recognition inspires us to keep raising the bar in client service and results.

  • IP boutique Leason Ellis is one of New York’s very best trademark practices. With tactical finesse, fearless strategy and a collaborative, team-oriented style, the ensemble delivers top-notch brand advice that runs the gamut, from global portfolios to full-scale litigation. In the words of patrons, the trademark and copyright practice group ‘is full of highly trained specialists who hold themselves to a very high standard.'

    WTR 1000, World Trademark Review

  • With a “solid bench of personable attorneys,” Leason Ellis stands out for its blend of sophistication and approachability. The team dives deep into the nuances of trademark law, connecting legal precision with brand strategy. Their sharp eye for detail and collaborative spirit infuse every matter with care and commercial impact.

    WTR 1000, World Trademark Review

  • Leason Ellis is a go-to firm for patent drafting as well as patent litigation. Its practitioners have the ability to understand the strategic importance of patent portfolios from a business perspective, creating significant added value over law outfits that do not look beyond the technical and legal aspects of patents. They have an excellent work ethic, deliver on time every time and genuinely have their clients’ business interests at heart.

    WTR 1000, World Trademark Review (2026)

  • Leason Ellis may be small, but it packs a powerful punch. By prioritising client needs and consistently exceeding expectations, it has become a go-to firm for all patent-related services.

    IAM Patent 1000

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Tatsuya Adachi Melissa A. Alcantara Elizabeth M. Barnhard Kristin J. Breen Dexter Chang Susie S. Cheng Stacey W. Chung Lori L. Cooper* Ralph J. Crispino M. Diana Danca Michael A. Davitz Edward Ellis* Lauren B. Emerson Joel J. Felber* Matthew L. Frisbee Henry A. Gabathuler Stefanie M. Garibyan Jordan G. Garner Melvin C. Garner Vera Glonina Howard I. Grossman Sara E. Gruber Brian M. Gummow James F. Haley Mitsu Haraguchi Robert M. Isackson Marcus J. Jellen Kendra V. Johnson Cha Hyung (Catherine) Kim David Leason Michelle J. Levin Jia Li Erica S. Livingstone Karen Mangasarian Yuval H. Marcus Elyse Marcus Joshua J. Montgomery Anthony J. Natoli Cameron S. Reuber Emily A. Rice* Maha M. Saber Marlene U. Sauer Karin Segall Peter S. Sloane Audrey E. Trace* Taylor L. Vacala Yilan Wang Jarryd R. Werts
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Tatsuya Adachi Melissa A. Alcantara Elizabeth M. Barnhard Kristin J. Breen Dexter Chang Susie S. Cheng Stacey W. Chung Lori L. Cooper* Ralph J. Crispino M. Diana Danca Michael A. Davitz Edward Ellis* Lauren B. Emerson Joel J. Felber* Matthew L. Frisbee Henry A. Gabathuler
Stefanie M. Garibyan Jordan G. Garner Melvin C. Garner Vera Glonina Howard I. Grossman Sara E. Gruber Brian M. Gummow James F. Haley Mitsu Haraguchi Robert M. Isackson Marcus J. Jellen Kendra V. Johnson Cha Hyung (Catherine) Kim David Leason Michelle J. Levin Jia Li
Erica S. Livingstone Karen Mangasarian Yuval H. Marcus Elyse Marcus Joshua J. Montgomery Anthony J. Natoli Cameron S. Reuber Emily A. Rice* Maha M. Saber Marlene U. Sauer Karin Segall Peter S. Sloane Audrey E. Trace* Taylor L. Vacala Yilan Wang Jarryd R. Werts
Copyright Litigation Patent Trade Secret Trademark Transaction
Artificial Intelligence Computers and Technology Consumer Goods Energy
Hospitality Industrials and Manufacturing Life Sciences and Pharmaceuticals Media, Arts, and Entertainment
Medical Devices Professional Services Transportation and Aerospace
China Japan
All Insights News Articles The Newtonian
About Leason Ellis Our Approach Our Culture Pro Bono & Community Engagement
Careers Why Join Us Current Opportunities