Our team

Devlin Law Firm Legal team


Michael A. Siem

Partner NY

Contact Information

About Michael A. Siem

Areas of Practice:

  • Intellectual Property Litigation
  • Patent Litigation
  • Patent Monetization
  • University Counseling


Michael A. Siem is a Partner, Co-Chair of Patent Litigation Group, and Chair of University Patent Litigation Group. He was previously Co-Chair of the IP Group at Goldberg Segalla and partner at a number of other large IP focused law firms.

Mr. Siem is a nationally renowned intellectual property litigator and registered patent attorney with a focus on complex and high-value patent litigation. In his patent litigation practice Mr. Siem has been lead trial counsel in patent litigation claims, and his trial experience includes all aspects of the litigation and trial process. He represents both patentees and alleged infringers in various federal district courts, and litigates cases in many technological areas, including pharmaceuticals, medical devices, consumer electronics, chemical processes, computer networks, and biotechnology.  Equipped with a deep understanding of pharmaceutical litigation related to intellectual property and the Hatch-Waxman Act, Mr. Siem also maintains a focus on matters related to Abbreviated New Drug Applications (ANDAs).

In the trademark realm, Mr. Siem has defended against claims of trademark and trade dress infringement, along with handling proceedings in the Trademark Trial and Appeal Board. Mr. Siem’s experience also includes handling trademark litigation under the Anticybersquatting Consumer Protection Act with regard to the use and registration of a website domain name.

Mr. Siem also has significant experience in drafting and filing patent and trademark applications.

In addition to his intellectual property litigation trial experience, Mr. Siem has had arguments at the Virginia Supreme Court, the Eleventh Circuit Court of Appeals, and numerous other state and federal district courts.

Mr. Siem also dedicates a significant portion of his time to pro bono matters. In 2010, he obtained a reversal and new sentencing hearing in the Virginia Supreme Court for a client who had received a death sentence. He was also lead counsel in a challenge to the constitutionality of lethal injection in the State of Georgia, and obtained an indefinite stay of execution on October 18, 2007 for his client. In recognition of these efforts, Mr. Siem was a recipient of the 2008 Thurgood Marshall Award for Capital Representation, given by the Committee on Capital Punishment of the Association of the Bar of the City of New York.


  • University of Michigan Law School, J.D., 2000
    • Michigan Telecommunications and Technology Law Review: Associate Editor
  • Illinois Institute of Technology, B.S., Chemical Engineering, 1996

Court Admissions

  • New York
  • U.S. Court of Appeals for the Federal Circuit
  • U.S. Court of Appeals for the Eleventh Circuit
  • U.S. District Courts for Southern and Eastern Districts of New York
  • U.S. District Court for the District of Colorado
  • U.S. District Court for the Eastern District of Texas
  • U.S. Patent and Trademark Office
  • U.S. Supreme Court

* Attorney is not barred in Delaware.



Professional Memberships

  • American Bar Association
  • Association of University Technology Managers
  • New York State Bar Association
  • New York Intellectual Property Law Association

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