March 19, 2024

Daniel Sullivan, Esq., Director of Chemistry and Mechanical Engineering

Senior IP & Patent Attorney
Mechanical Engineering


Dan has over 25 years of Patent and Trademark Law experience. He has worked for multinational firms, such as DuPont and Titleist (Acushnet Co.) and managed their brands and patent portfolios globally.

Attorney Sullivan advises clients in patent strategy, portfolio management, patent prosecution, trademark protection, copyright filings, and trade secret matters. He has over 25 years of legal experience specializing in intellectual property law and has worked as Patent Attorney for major corporations assisting research and development teams with patent identification and protection strategies. He assists entrepreneurs with startup challenges, patent strategy, business agreements, and contracts, and other intellectual property law matters.

Attorney Sullivan graduated in 1989 from the Villanova University with a Juris Doctor degree. He earned his Bachelor of Science degree in Biology/Chemistry from Providence College.


  • Intellectual property identification, development and protection
  • Chemical compounds, materials sciences, heath/beauty products, and composites
  • Mechanical engineering patents
  • Consumer goods and services
  • Trademark strategy and prosecution
  • Legal R&D management


  •  Registration United States Patent and Trademark Office (1991)
  •  The Bar for the Commonwealth of Massachusetts (1990)
  • The Bar for the State of Pennsylvania (2004)

Boards & Philanthropy

  •  Volunteer Teaching
  • Volunteer Coach for Youth Sports
  • Local Community Charities

Areas of Expertise

  • IP Strategy Development
  • Patent Application Drafting
  • Freedom to Operate Analysis
  • Patentability Analysis
  • Trademark Strategy and Registration
  • Copyright Registration
  • License Agreement Negotiation
  • Out-/In-Licensing
  • Foreign/Domestic Prosecution
  • Third Party Patent Evaluation
  • IP Counsel to Staff
  • IP Litigation Strategy Coordination

Attorney Dan Sullivan assists innovators and startups with patent, trademark, copyright, and business law matters in Boston, Cranston, Providence, Warwick, Worcester, Massachusetts. Rhode Island, Florida, and throughout the United States. Text us to arrange a call today 401-383-9525 or click the contact button above.