John McGrath

John McGrath

Associate | Litigation
202.601.0394 LinkedIn Profile


  • BA, Economics, The College of William & Mary
  • JD, The George Washington University Law School, with honors

Practice Groups

Admitted to Practice

  • District of Columbia


  • Washington, DC


John McGrath focuses his practice on patent litigation. His experience comprises all phases of patent litigation from pre-suit diligence through evidentiary hearings and post-hearing review. He has counseled clients across multiple International Trade Commission Section 337 Investigations and district court patent infringement suits with an emphasis on the economic, public interest, and damages aspects of each matter.

Prior to joining Wolf Greenfield, John was an associate at an Am Law 50 firm.

While in law school, John served as a Notes Editor for the American Intellectual Property Law Quarterly Journal. John was also a Thurgood Marshall Scholar, a member of the Moot Court Board, a Dean’s Fellow, Writing Fellow, and 1L Student Mentor.


  • Certain Cellular Base Station Communication Equipment, Components Thereof, and Products Containing Same, ITC Inv. No. 337-TA-1302.
  • Certain High-Performance Gravity-Fed Water Filters and Products Containing the Same, ITC Inv. No. 337-TA-1294.
  • Certain Smart Thermostats, Load Control Switches, and Components Thereof, ITC Inv. No. 337-TA-1277.
  • Certain Electrolyte Containing Beverages and Labeling and Packaging Thereof, ITC Inv. No. 337-TA-1269.
  • Certain Televisions, Remote Controls, and Components Thereof, ITC Inv. No. 337-TA-1263.
  • Certain Portable Battery Jump Starters and Components Thereof, ITC Inv. No. 337-TA-1256.
  • Godo Kaisha IP Bridge 1 v. Telefonaktiebolaget LM Ericsson, Case No. 2:21-cv-00213 (E.D. Tex.).


  • International Trade Commission Trial Lawyers Association


  • Ranked Top 50 Overall Performing ITC Lawyer; Top 100 Most Active—out of 4,656 attorneys representing respondents or complainants (Patexia’s 2023-2024 ITC Intelligence Reports)


  • John W. McGrath, Commission Affirms Contested Vacatur of Moot Patent in RF Inventory Trackers Case. ITC Trial Lawyers Association Section 337 Reporter Monthly Round-up (May 2023).
  • John W. McGrath, ALJ Shaw Entertains Rare Secondary Considerations Argument in Acidic Slurries Patent Investigation Initial Determination. ITC Trial Lawyers Association Section 337 Reporter Monthly Round-up (October 2021).
  • John W. McGrath and Juan J. Garcia, Two Bites at the Apple: Revisiting the Preclusive Effects of Patent and Non-Patent ITC Decisions. ITC Trial Lawyers Association Section 337 Reporter, The Paul J. Luckern Summer Associate Edition, Vol. XLIII (2019).

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