Lee J. Eulgen


Lee is an intellectual property litigator and advisor who manages sophisticated portfolios for clients with worldwide operations. His practice includes the full range of intellectual property dispute and transactional matters, with an emphasis on trademark, copyright, trade secret, trade dress, privacy and litigation. He is member of the firm’s Executive Committee.

Lee serves as lead counsel before state and federal courts and administrative agencies throughout the country, and he also coordinates efforts to resolve similar international disputes. His practice covers all traditional intellectual property assets, as well as issues such as data ownership and online compliance. He has litigated countless domain name ownership disputes. He is a former chair of the Domain Disputes Subcommittee of the International Trademark Association’s Internet Committee. He is currently Vice Chair of the International Trademark Association’s U.S. Famous Marks subcommittee.

He counsels clients concerning strategic facets of global trademark portfolio development, including clearance, prosecution and enforcement matters. Lee also negotiates a wide variety of complex technology and licensing agreements and transactions. As co-chair of the firm’s Hospitality & Leisure practice group, Lee has handled many sophisticated hotel agreements, joint ventures, and other arrangements.

Lee frequently gives back through pro bono work. He prevailed at trial in a forgery case brought on behalf of an elderly client who had lost title to his home because of a fraudulent deed. In addition, Lee sat on the Board of Directors of the Chicago domestic violence clinic, Pro Bono Advocates, for five years, and was previously on the Board of The Foundation for Peripheral Neuropathy.

Clients appreciate Lee’s commitment to learning the distinctive attributes of their products, services and brands that make them competitive. Lee understands the long-term business considerations that are crucial to his clients’ development and protection. He spends substantial time analyzing his clients’ operations and competitive environments to ensure their innovation and branding strategies consistently achieve their potential.

Bar Admissions

  • Illinois
  • Wisconsin

Court Admissions

  • U.S. District Court for the Northern District of Illinois (Trial Bar)
  • U.S. District Court for the Western District of Wisconsin
  • U.S. Court of Appeals for the Tenth Circuit
  • U.S. Court of Appeals for the Eleventh Circuit