John L. Buchanan, Ph.D.



Dr. John L. Buchanan focuses his practice on U.S. and international patent preparation and prosecution in the pharmaceutical and biotechnology fields for life science companies and academic institutions. John earned his Ph.D. in organic chemistry from the University of Wisconsin-Madison. Prior to attending Boston College Law School, he worked as a medicinal chemist in the pharmaceutical industry for 20 years at Amgen, among others.

John’s academic and industrial background in organic chemistry sets him apart from peers. It has enabled him to handle a wide spectrum of complex chemical fields, including new chemical entities such as small and multi-functional molecules and process chemistry. As a lawyer, John has expanded his technical acumen. He represents clients in matters involving proteins, antibodies, antibody-drug conjugates, therapeutic nucleic acids (e.g., cancer vaccines) and formulations, biomarkers, lateral flow devices, biosensors, sorbent polymer composite materials, and wound management biomaterials. In addition to patent preparation and prosecution, John has gained considerable exposure to infringement, validity, and freedom-to-operate matters.

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J. D., Boston College Law School
Ph.D., Organic Chemistry, University of Wisconsin-Madison
B.S., Chemistry and Mathematics, cum laude, Hope College


U.S. Patent and Trademark Office

community involvement

Foster Parent, Massachusetts Department of Children and Families (DCF)

Foster Parent, Animal Rescue League of Boston (ARL)

Initiated pro bono collaboration with Boston College Law School Prison Disciplinary Hearings Clinic.


Boston Bar Association

Boston Patent Law Association

American Chemical Society (ACS)

  • Organic Division
  • Medical Division

The Journal of Organic Chemistry

  • Reviewer (2002-2014)


John is a co-author of 19 publications (including 5 as the first author), 14 patent applications (including 12 with issued US claims), 4 posters/presentations, and 3 blog posts.