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WTR 1000 2024 Recognizes Arnold & Porter’s Trademark Capabilities

February 9, 2024

Eleven Arnold & Porter attorneys across seven practices were recognized in the 2024 edition of World Trademark Review 1000. The research directory annually compiles "the top trademark professionals in key jurisdictions around the globe."

WTR 1000 recognized Arnold & Porter's attorneys for their enforcement and litigation abilities as well as their prosecution and strategy experience. The guide recognized Arnold & Porter nationally as well as its practices in California, Illinois, New York, and Washington, D.C. offices, and highlighted the firm for its “strategic and savvy portfolio managers, tenacious disputers and well-rounded practitioners whose dexterity extends across the contentious/non-contentious divide” and for having “seamless cross-office and cross-practice collaboration.”


  • National
  • California: Enforcement and Litigation
  • District of Columbia: Prosecution and Strategy
  • Illinois: Enforcement and Litigation
  • Illinois: Prosecution and Strategy
  • New York: Enforcement and Litigation
  • New York: Prosecution and Strategy

Individual Attorneys

  • Louis Ederer—New York: Enforcement and Litigation; Prosecution and Strategy
  • Dori Hanswirth—New York: Enforcement and Litigation; Prosecution and Strategy
  • Michael Harris—Illinois: Enforcement and Litigation
  • Theresa House—New York: Prosecution and Strategy
  • Helen Minsker—Illinois: Prosecution and Strategy
  • Paul Llewellyn—New York: Enforcement and Litigation; Prosecution and Strategy
  • Thomas Magnani—California: Prosecution and Strategy 
  • Christopher Renk—Illinois: Enforcement and Litigation
  • John Rynkiewicz—District of Columbia: Prosecution and Strategy
  • Matthew Salzmann—New York: Enforcement and Litigation
  • Rhonda Trotter—California: Enforcement and Litigation