Firm PROFILE
Amster, Rothstein & Ebenstein LLP
USA 2026
Rankings
Leading firm in USA 2026
Ranked Department
Ranked Department
Top figures
37
Lawyers
1
Offices
1953
Established Year
Content provided by Amster, Rothstein & Ebenstein LLP
Overview
Provided by Amster, Rothstein & Ebenstein LLP
Amster, Rothstein & Ebenstein LLP is a leading New York IP boutique, founded in 1953, with deep expertise across the full IP lifecycle. The firm combines sophisticated patent prosecution, portfolio strategy, licensing, and IP litigation with technical depth in life sciences, technology, AI, electronics, and consumer products. Known for strategic, business-focused counsel, responsiveness, and practical solutions, ARE serves startups, innovators, and global companies.
Industry sectors (11)
- AI & Software
- Pharmaceuticals & Life Sciences
- Chemistry & Agrochemicals
- Retail & Fashion
- FinTech & Financial Services
- Universities, Academic Research Institutes & Hospitals
- Streaming Media
- Green Technology & Energy
- Hospitality & Entertainment
- Manufacturing, Consumer & Industrial Goods
- Start-ups & Entrupenuers
Capabilities (15)
- Patent Prosecution
- Patent Litigation
- Trademark Prosecution
- Copyright Litigation
- Counseling & Strategy
- Licensing
- Post Issuance Proceedings
- Oppositions & Cancellation Proceedings
- IP & Data Licensing Agreements
- NDA & Confidentiality Agreements
- Trademark Litigation
- Business Torts
- Research Collaboration Agreements
- Right to Use Opinions
- PTAB & TTAB Proceedings
Clients (9)
- e.l.f. Cosmetics
- Walmart
- Steve Madden
- Regeneron Pharmaceuticals, Inc.
- Macy's, Inc.
- Columbia University
- Northwell Health, Inc.
- Olivet International, Inc.
- Daron Worldwide Trading
Key people
Provided by Amster, Rothstein & Ebenstein LLP
Richard S. Mandaro
Managing Partner
Douglas Miro
Partner
Anthony Lo Cicero
Chairman
Gary Gershik
Partner
Chester Rothstein
Partner
Brian Amos, Ph.D.
Partner
Ken George
Partner
Charley Macedo
Of Counsel
Work & experience
Provided by Amster, Rothstein & Ebenstein LLP
ARE provides strategic, business-focused IP counsel across patent prosecution, portfolio management, licensing, enforcement, and complex litigation. Recent standout work includes high-stakes IP disputes for leading consumer and retail brands, sophisticated PTAB matters, and counseling on AI and emerging technologies. The firm combines deep technical expertise with practical strategies that protect and maximize clients’ IP assets.
Ranked Offices at Amster, Rothstein & Ebenstein LLP
Provided by Amster, Rothstein & Ebenstein LLP
Ranked Departments at Amster, Rothstein & Ebenstein LLP (1)
Ranked Individuals at Amster, Rothstein & Ebenstein LLP (2)
Unknown
Charles Macedo
View profile Richard Mandaro
View profile
Top figures
37
Lawyers
1
Offices
1953
Established Year
Content provided by Amster, Rothstein & Ebenstein LLP
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