Principal / Boston / 617-956-5940

Sean Daley

​Sean P. Daley, Ph.D., represents clients of various sizes, from emerging companies to major multinational corporations. His practice emphasizes strategic patent portfolio prosecution, development and management, freedom to operate studies, and patent-related opinions, due diligence, post-grant proceedings, and licensing. He has significant additional experience in patent litigation.

Sean has drafted and prosecuted patent applications in various technologies, including innovations relating to energy (photovoltaic cells, fuel cells, batteries, petrochemicals), optics (microlithography systems, retardation films, polarizers, optical filters, eyeglasses, laser processing of amorphous silicon), microscopy (ion microscopy, electron microscopy), medical devices (stents, catheters, catheter delivery systems, ultrasonic devices, bone replacement devices/materials), pharmaceuticals (small molecule drugs, metal-containing drugs), instrumentation (mass spectroscopy, microfluidics), polymers (bioplastics, antibacterial polymers), telecommunications (optical waveguides) and supercritical fluids.



J.D., Suffolk University Law School 1999
cum laude

Ph.D., Massachusetts Institute of Technology 1994
Physical Chemistry

B.S., University of Massachusetts 1989
summa cum laude, Phi Beta Kappa


  • U.S. Patent and Trademark Office 1997
  • Massachusetts 1999
  • U.S. Court of Appeals for the Federal Circuit
  • U.S. District Court for the District of Massachusetts



Licensing Agreements

Drafted agreements relating to licenses, intellectual property ownership, joint ventures, supply, and confidentiality.

Patent Opinions

Drafted over 100 opinions on non-infringement and invalidity, relating to numerous technologies, including chemicals, materials, coatings, medical devices, optics, and instrumentation.

Due Diligence Investigations

Handled due diligence investigations in a broad range of technologies, including medical devices, optics, photovoltaics, and pharmaceuticals.

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