Lucas & Mercanti LLP

Intellectual Property Law

Lucas & Mercanti provides practical advice and assertive advocacy. Setting us apart is how well we understand our clients’ businesses and the science behind their innovations, and how skillfully we leverage that insight to meet their legal needs in a responsive, cost-effective way.

A Crisp Decision on CRISPR
An inventor’s negative statements as to what she supposedly had invented came back to haunt her. See our latest IP Law Update.


  • Donald C. Lucas

    Donald C. Lucas

    Donald C. Lucas, co-founder of the firm, has successfully prepared and prosecuted a large number of patent applications in an array of chemical, mechanical, and electro-mechanical technologies.

  • Thomas J. Vetter

    Thomas J. Vetter

    Tom Vetter's 30-plus years of experience in patent litigation and counseling includes appellate practice before the Federal Circuit, Hatch-Waxman litigation, contested case litigation in the Patent Office, and as lead advisor on numerous mergers, joint ventures, and licensing transactions.

  • Peter J. Phillips

    Peter J. Phillips

    For more than 30 years, Peter J. Phillips has represented clients in virtually all areas of intellectual property law with specific attention to achieving clients’ goals and objectives as a legal advisor to clients’ management teams.

  • Klaus P. Stoffel

    Klaus P. Stoffel

    Klaus P. Stoffel practices in all areas of intellectual property law with a primary focus in the prosecution of patents, rendering legal opinions and advising clients on infringement and validity issues.

  • Elizabeth Lee D'Amore

    Elizabeth Lee D'Amore

    Fluent in English, Spanish and Korean, Ms. Lee D'Amore prepares and prosecutes patent applications in the biological, chemical, pharmaceutical, biochemical and biotechnological arts, and also maintains an active U.S. and foreign trademark practice.

  • James R. Major D.Phil.

    James R. Major D.Phil.

    James Major has focused on the discipline of intellectual property for nearly fifteen years. Leveraging a doctorate in life sciences, James prepares and prosecutes patent applications, and provides freedom-to-operate, white-space, and validity opinions.