Cate Stetson is a member of the Hogan Lovells Global Board and the co-Director of its nationally acclaimed Appellate practice group. A Chambers-ranked appellate lawyer with dozens of arguments to her name, Cate has been described to the press as a "superb" advocate and "one of the finest lawyers who appears" in the U.S. Court of Appeals for the D.C. Circuit, and commended for her "brilliance of mind and ability to grasp complicated technical matters."

Cate has argued in the U.S. Supreme Court, in most of the federal courts of appeals, and in multiple state appellate courts. She has argued over eighty appeals and briefed hundreds more. Her experience spans appeals presenting questions of administrative law and procedure, antitrust law, the Americans with Disabilities Act (ADA), the Employee Retirement Income Security Act (ERISA), the False Claims Act (FCA), class certification, civil procedure, and constitutional, contract, copyright, employment, energy, environmental, food and drug, healthcare, insurance, patent, telecommunications, and tort law.

Before joining our legal practice, Cate served as a judicial clerk to The Honorable Stanley S. Harris of the U.S. District Court for the District of Columbia and The Honorable David S. Tatel of the U.S. Court of Appeals for the D.C. Circuit.


  • Briefed, argued, and won a seminal Foreign Sovereign Immunities Act case in the U.S. Supreme Court.
  • Briefed, argued, and won multiple appeals on administrative procedure and environmental issues for multiple energy clients in the D.C., Second, and Ninth Circuits.
  • Briefed, argued, and won a federal preemption case of first impression in the U.S. Court of Appeals for the Fourth Circuit.
  • On behalf of a national industry group, briefed and argued an en banc First Amendment case in the D.C. Circuit.
  • Cocounseled and won a high-profile Maryland appeal involving Adnan Syed, the subject of the first “Serial” podcast.
  • Briefed, argued, and won in the D.C. Circuit an affirmance of a federal district court ruling granting class certification to a class of African-American federal employees who claimed their employer had discriminated against them in hiring and promotion decisions.
  • Briefed and argued a high-profile copyright issue of first impression for a performing-rights organization in the United States Court of Appeals for the Second Circuit.
  • Argued a seminal civil-procedure case in the U.S. Supreme Court.
  • On behalf of several nuclear utilities, argued and won multiple precedent-setting damages appeals in the United States Court of Appeals for the Federal Circuit arising from the federal government's breach of its contract to dispose of utilities' spent nuclear fuel.
  • On behalf of a major energy company, briefed and argued a complex environmental and energy issue in the United States Court of Appeals for the Ninth Circuit.
  • On behalf of a computer software and services company, handled a complex Federal Circuit patent infringement appeal involving microprocessor parallel processing architecture.
  • Argued and won, before a divided 11-judge court, a high-profile Ninth Circuit en banc case involving issues of land use and religious rights, and subsequently defeated a petition for certiorari.
  • Successfully sought discretionary review of, argued, and won an important insurance coverage issue for a national client at the highest court of appeals in New York State.
  • Handled a successful appeal in the Eleventh Circuit defending a managed care company against ERISA claims brought by a state attorney general.
  • Successfully defended against a Supreme Court petition for certiorari brought by the United States Solicitor General in a multibillion-dollar Medicare matter.
  • Handled an appeal in the Seventh Circuit in a complex electric ratemaking matter.
  • Handled, on behalf of a national nonprofit association, a successful appeal in the U.S. Court of Appeals for the Ninth Circuit challenging agency regulations that failed to comport with the requirements of the National Environmental Policy Act.
On behalf of several national corporations and federations of business entities, filed multiple amicus briefs in the Supreme Court on matters including federal preemption, patent, antitrust, and employment law.

Associated Items

3 items
Program or Publication

Live Program