Amster Rothstein & Ebenstein

Firm overview:

New York IP boutique Amster Rothstein & Ebenstein earns its place in the Trademark Rankings for its strategic brand protection advice, and litigation expertise. The team assists clients with the full trademark life cycle, from selection and clearance through prosecution and representation in court.

Amster Rothstein & Ebenstein is held in high regard by peers for the strength of its trademark litigation practice, acting for clients in forums including the district courts, appellate courts, and Trademark Trial and Appeal Board (TTAB). The team also advocates for clients in the US and beyond in trademark opposition and cancellation matters before the US Patent and Trademark Office (USPTO).

Team overview:

The firm has a highly experienced trademark team, some of whom hold significant leadership positions within the firm.

Chairman Anthony Lo Cicero is an engineer by training and has a significant patent practice, but has also advised some household-name brands on trademark protection. Lo Cicero led the Amster Rothstein & Ebenstein team in representing e.l.f Cosmetics in its high-profile trademark dispute with Benefit.

Managing partner Richard Mandaro is also adept at turning his hand to either patent or trademark matters, and was on the team for e.l.f Cosmetics. Part of his practice involves counselling clients in the technology, retail, apparel, cosmetics, toy, and restaurant industries on trademark and brand development, protection, enforcement and anti-counterfeiting.

Key matters:

• Benefit Cosmetics v e.l.f Cosmetics

An Amster Rothstein & Ebenstein team consisting of Anthony Lo Cicero, Chester Rothstein, Christopher Lisiewski and Richard Mandaro, along with counsel from Bartko, represented e.l.f Cosmetics in a trademark dispute with Benefit Cosmetics.

In December 2024, a California court sided with e.l.f, finding no evidence that its budget-friendly mascara infringed on the branding of Benefit’s Roller Lash product.

Clients:

e.l.f Cosmetics