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Amster Rothstein & Ebenstein

United States (National)

Key contacts
Managing Partner: Richard Mandaro
Hiring Partner : Charles Macedo
Director of Administration & Operations : Michael Lafferty
Quick facts
Partners

17

Other qualified practitioners

19

Total number of lawyers

36

Practitioners (worldwide)

36

Languages

English, Arabic, Chinese, French, German, Hebrew, Japanese, Russian, Swedish

Network memberships

American Bar Association, American Intellectual Property Law Association (AIPLA), Hon. William C. Conner Inn of Court, Institute of Electrical and Electronics Engineers (IEEE), International Trademark Association (INTA), New York Intellectual Property Law Association (NYIPLA), New York State Bar Association

Firm overview

Amster, Rothstein & Ebenstein, LLP is a boutique intellectual property law firm offering cutting-edge expertise and best-in-class client service. We work with startups and established businesses to develop custom strategies for protecting and enforcing intellectual property rights across emerging and traditional industries.

Practice Areas & Sector Specialisations

Key practice areas

Copyright, Copyright & related rights, Designs, Intellectual property, Intellectual property (contentious), Intellectual property (prosecution), IP transactions, ITC litigation, Life sciences IP, Patent, Patent (contentious), Patent (prosecution), PTAB litigation, Trade mark, Trade mark (contentious), Trade mark (prosecution), Other

Key Sector Expertise

Agriculture, Artificial intelligence, Biotechnology, Chemical, Computer technology & services, Consumer goods and services, Defence, E-commerce, Electrical, Electronics, Energy, Fashion & luxury goods, Financial services, Food and beverage, Gaming, Healthcare, Hospitality & leisure, ICT & software, Industrials, Internet, Investment management, Life sciences, Manufacturing, Mechanical, Medical device, Nanotechnology, Pharmaceutical, Professional services, Renewable energy, Retail, Robotics, Semiconductors, Social infrastructure, Technology hardware, Telecommunication, Universities & research, Utilities

Address:
405 Lexington Ave Floor 48, New York, NY
10174, United States
Tel:+12123368000 Email:Contact Us Web Address:https://www.arelaw.com
Testimonials

2026

"Gary Gershik is our patent attorney. He has provided outstanding advice on multiple patent-related matters, including helping us gain multiple issued patents that protect billion-dollar-plus assets that another patent firm told us were not possible to achieve."

"They are efficient and timely, including never missing a deadline."

"They are brilliant, honest, and likable lawyers."

"Charley is bright, sharp minded, and easy to work with. He's cross-examination techniques are top-notch."

"They aim to please. They can also work out a reasonable budget."

Gary Gershik

"First, Gary is a great IP strategist. Second, Gary is an innovative thinker and can find solutions to problems that others can't. Finally, Gary is committed to his clients and is willing to get personally involved to defend clients' IP positions, including being willing to speak directly to patent examiners to resolve points of contention or confusion if needed."

Richard Mandaro

"Rich is a great all around IP litigator. He knows the law, can apply the law to the facts, and is at home in the courtroom."

Charley Macedo

"Very smart. He is able to work well with others, and lead the team to desired goals."

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Law firms are integrating AI to remain competitive, and some are noticing an impact on traditional training and billing models
Charles Achkar, who will bring a team of two with him, said he was excited about joining ‘one of the few strong IP boutiques’
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