Mary Hallerman

Partner at Snell & Wilmer LLP

Mary Hallerman focuses her practice on trademark, trade dress, unfair competition, false advertising, and copyright litigation, enforcement and counselling. She regularly represents clients in federal trial and appellate courts throughout the United States and the Trademark Trial Appeal Board, as well as in domain name disputes before the World Intellectual Property Organisation and similar fora.

Prior to joining Snell & Wilmer, Ms Hallerman was a partner at McDermott Will & Emery. In the past decade, she has gained substantial experience in key issues encountered in Lanham Act and copyright litigation, including priority, ownership, likelihood of confusion (forward, reverse and initial interest), acquired distinctiveness or secondary meaning, genericness, surveys (confusion, fame, genericness, false advertising), trademark counterfeiting, uncontrolled licensing, holdover franchisees, functionality of trade dress, grey goods, cybersquatting, keyword advertising and search engine optimisation, copyrightability, pre-emption, open source software, and damages and injunctive relief.

World Trademark Review recently recognised Ms Hallerman’s “faculty for guiding case strategy and management”. She regularly develops and implements discovery strategies, takes and defends depositions, works with expert witnesses, prepares and argues dispositive motions, and leads trial and evidentiary hearing preparation. She has prepared numerous complaints and motions for and oppositions against ex parte and preliminary injunctive relief. Ms Hallerman also has significant appellate experience, having represented clients in trademark, trade dress, false advertising and copyright appeals across four different circuits.

In addition to her litigation practice, Ms Hallerman regularly works with clients in managing trademark and domain name portfolios, assessing litigation risks, selecting and clearing trademarks, reviewing advertising copy and assisting in the IP aspects of corporate transactions.

Ms Hallerman has garnered numerous recognitions in her young career, including from WTR 1000 (2020-2021); The Best Lawyers in America, Trademark Law (2020-2021); The Legal 500 (2018-2019); and Super Lawyers, Rising Star (2014-2020).

Professional associations

  • Copyright Society of the USA
  • INTA
  • National LGBT Bar Association

Firm details

Snell & Wilmer LLP
2001 K Street NW
Suite 425 North
Washington DC 20006
United States

Contact details

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