William C. Geary


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Practice Areas

  • Intellectual Property
  • International Patent
  • IP Litigation
  • Patent Procurement
  • Trademark
  • Copyright & Domain Name Protection
  • Energy Technology
  • Post-Grant Proceedings
  • Medical Technology
  • Technology
  • Communications & Media
  • Education
  • Manufacturing
Contact InfoTelephone: 617.348.3046
Fax: 617-542-2241
University University of Massachusetts - Lowell, B.S., Polymer Engineering
Law SchoolCase Western Reserve University School of Law, J.D.
Admitted1983, Massachusetts; Federal Circuit Court of Appeals; United States District Court for the District of Massachusetts; United States Patent and Trademark Office

Professional & Community Involvement:
•Member, Boston Patent Law Association
•Member, American Intellectual Property Law Association (AIPLA)
•Member, American Bar Association
•Member, Massachusetts Bar Association
•Member, Boston Bar Association
•Board of Directors, Merrimack Valley Venture Forum
•Advisory Board, The Massachusetts Medical Device Development Center (M2D2)


Bill is an experienced patent and trademark attorney with a particular background in medical technology, polymers and advanced materials, and chemicals.

Bill provides counsel on all phases of patent and trademark law, through development strategy, protection, and exploitation of patent and trademark rights. His clients include start-ups, large companies such as Johnson & Johnson, medical technology manufacturers, and research institutions such as Massachusetts General Hospital.

In the area of patent rights and litigation, Bill has represented clients in federal district courts and before the International Trade Commission. He also provides opinions on new products before they hit the public market and has served as lead counsel in patent interferences and on matters connected to foreign patent opposition. Bill's patent experience includes technology areas such as oil drilling equipment, floppy disk liners, jewelry clasps, and bioimplantable polymers. Regarding trademark law, Bill has represented clients before state courts in Massachusetts and the Trademark Trial and Appeal Board as well as in federal district courts.

Bill is recognized for his broad experience, having received rankings from Super Lawyers in both the Corporate Counsel Edition and the Business Edition.


• Fifty-Two Mintz Levin Attorneys Featured in Chambers USA 2015 Guide, (05.19.2015)
• Eighty-Five Mintz Levin Attorneys Named 2014 Massachusetts Super Lawyers and Rising Stars, (10.17.2014)
•Featured in Mintz Levin Nabs 3 Patent Pros for Boston Office, Law360 (04.14.2014)
• Mintz Levin Expands Renowned Intellectual Property Practice with Addition of Three New Members, (04.10.2014)

Speaking Engagements

•Speaker, Practical tips for drafting, prosecution, filing and oppositions in view of Global Legal Updates, IP Best Practices Conference 2015, Intellectual Property Resources (05.11.2015)
•Speaker, 2015 M2D2 New Venture Competition Awards, The Massachusetts Medical Device Development Center (M2D2), Boston, MA (04.16.2015)
•Speaker, Tips on Swimming with the Sharks: IP Due Diligence, Massachusetts Medical Device Development Center (M2D2), Lowell, MA (03.04.2015)
•Speaker, Trends, Challenges and Methodologies of Future Medical Device R&D, MDDMI, Tel Aviv (12.10.2014)
•Speaker, Intellectual Capital Management, Health Care Technological Innovation from Idea to Commercialization, Recanati Business School - Tel Aviv University, Tel Aviv (12.09.2014)
•Speaker, IP Due Diligence, In-House IP Forum, Intellectual Property Resources (IPR), Tel Aviv (12.08.2014)

Recognitions & Awards

Chambers USA: Massachusetts - Intellectual Property (2015)
Massachusetts Super Lawyers (2004 - 2014)
Managing Intellectual Property: IP Star (2014, 2015)


Documents by this lawyer on Martindale.com

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When Prior Terminal Disclaimers Continue to Punish Subsequent Applications: A Potential Danger in Filing an Overly-Broad Terminal Disclaimer
Derek E. Constantine,William C. Geary, December 28, 2015
A recent U.S. District Court decision has clarified a potential danger when filing terminal disclaimers that contain overly-broad language. The U.S. District Court for the Northern District of Illinois in Hagenbuch v. Sonrai Systems interpreted the terminal disclaimer language “I hereby...

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Office Information

William C. Geary

BostonMA 02111


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