Eleven Arnold & Porter lawyers across eight practice categories were recognized in the 2026 edition of World Trademark Review (WTR) 1000. The research directory annually compiles "the top trademark professionals in key jurisdictions around the globe."
WTR 1000 highlighted the firm's trademark enforcement and litigation capabilities, as well as its prosecution and strategy experience. The guide noted that the team "builds lasting client relationships and delivers results that align seamlessly with commercial strategy," and that clients value its "commitment to practical outcomes over profit-driven tactics," viewing the firm as "a trusted go-to for top brands looking to safeguard their most valuable assets."
The firm was recognized in the following practice categories by WTR 1000 2026:
- National: Enforcement and Litigation
- National: Prosecution and Strategy
- 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
The following lawyers were recognized by WTR 1000 2026:
- Dori Hanswirth—National: Enforcement and Litigation; Prosecution and Strategy; New York: Enforcement and Litigation; Prosecution and Strategy
- Michael Harris—Illinois: Enforcement and Litigation
- Theresa House—New York: Prosecution and Strategy
- Michael Kientzle—District of Columbia: Next Generation
- Paul Llewellyn—National: Enforcement and Litigation; Prosecution and Strategy; New York: Enforcement and Litigation; Prosecution and Strategy
- Thomas Magnani—National: Transactions and licensing; California: Prosecution and Strategy
- Oscar Ramallo—California: Enforcement and Litigation
- 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