William R. Haulbrook, PhD

Bill Haulbrook leads Choate’s Digital Biotech and Engineering disciplines, counseling technology companies and their investors. He has a depth of experience in drafting and prosecuting patent applications, as well as handling patent licensing, patent validity research and analysis, and IP and freedom-to-operate opinions.

An increasing amount of Bill’s work involves artificial intelligence and machine learning (AI/ML) patent litigation and patent portfolio development. His AI work includes biomarker- and image-based diagnostics, drug development, big data processing, and novel neural network architecture.


  • “Patent Star” by Managing Intellectual Property (2016-2024)
  • “Top Ten Intellectual Property Lawyers Influencing Nanotechnology” by Nanotechnology Law and Business (2008)

Representative Engagements

  • Ongoing representation of large medical imaging and diagnostics company with respect to IP protection and strategic partnerships.
  • Development of patent portfolios for start-ups, venture-backed companies, public companies, and research institutions.
  • Advising clients in patent reexaminations, oppositions, and pre-litigation strategies.
  • Advising clients in joint development agreements and IP licensing issues.
  • Performing IP diligence for clients seeking investor financing.
  • Performing IP diligence for inventors interested in technology companies.

Publications and Presentations

  • “101 Update & Industry Perspectives – Diagnostics & Bioinformatics,” moderator, BIO IPCC Fall Conference, November 2016.
  • “Using Post-Grant Proceedings to Challenge Pharma Patents,” author, IP Law360.
  • “A Push by the USPTO for Faster Patent Processing,” author, IP Law360.
  • “Walking the Line: Advice for Patent Agents on Interacting with Clients without Direct Attorney Supervision,” panelist, Boston Patent Law Association Seminar, Boston.
  • “Clean Energy Fellowship Program,” panelist, New England Clean Energy Council, Boston.
  • “Strategic Choices in Nanotech Funding and IP Protection,” moderator, Nano Science and Technology Institute Conference, Boston.
  • “Nanotechnology: Strategies for Securing and Protecting Patents and Copyrights,” panelist, Strafford Publications CLE Teleconference.
  • “Nanotech Patents: Tips for Getting the Patent Protection You Need,” co-author and presenter, Nano Science and Technology Institute Conference, Santa Clara.
  • “Getting a Handle on the Software Patent Explosion,” author, IPFrontline, Patent Strategy and Management.

Education & Credentials

University of North Carolina School of Law
JD, 2001, cum laude

Massachusetts Institute of Technology
PhD, 1993, Chemical Engineering
MS, 1991

University of South Carolina
BS, 1989



U.S. Patent & Trademark Office

William's Insights