FacultyFaculty/Author Profile

Cate Stetson

Hogan Lovells US LLP

Washington, DC, USA

Cate Stetson is a member of the Hogan Lovells Global Board and the co-Director of our 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 filed dozens of petition- and merits-stage briefs in the U.S. Supreme Court and has briefed hundreds of matters on appeal. 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 and argued a seminal civil procedure 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.
  • 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.
  • On behalf of numerous industry groups, briefed and argued two D.C. Circuit challenges to Environmental Protection Agency ethanol regulations.
  • On behalf of a major pharmaceuticals client, briefed and argued a D.C. Circuit appeal defending a judgment notwithstanding the verdict in an employment case presenting unsettled issues of law, and secured a unanimous affirmance.
  • 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.
  • 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.
  • Briefed and argued a significant appeal presenting both statutory and constitutional issues on behalf of an Arizona city challenging a federal land-into-trust application.
  • 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.
  • Handled a successful appeal in the D.C Circuit involving the treatment of remedies for a pipeline's Natural Gas Act violations.
  • 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.
  • Briefed, argued, and won a major appeal in the Maryland state courts for a national insurance company.
  • Represented an energy company in a successful D.C. Circuit challenge to an agency's decision placing onerous conditions on a proposed merger.
  • Handled a successful appeal in the D.C. Circuit on behalf of a national trade association challenging an agency's authority to issue certain historic-preservation regulations.
  • On behalf of two national business entities, argued an appeal in the Fourth Circuit Court of Appeals challenging an agency denial of a petition under the Information Quality Act as a violation of the Administrative Procedure Act.
  • Argued on behalf of a water filtration company a patent infringement appeal involving a doctrine-of-equivalents issue.
  • Handled a Second Circuit appeal on behalf of a pharmaceutical company sued by a consumer for allegedly negligently permitting counterfeit versions of its products to enter the prescription drug market.
  • 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.
Cate Stetson is associated with the following items:
Live Seminar  Live Seminar Appellate Advocacy 2018, Thursday, April 19, 2018, New York, NY
PLI Grpcast-Live Web  PLI Grpcast-Live Web Appellate Advocacy 2018, Thursday, April 19, 2018, Atlanta, GA
Appellate Advocacy 2018, Thursday, April 19, 2018, Nashville, TN
Live Webcast  Live Webcast Appellate Advocacy 2018, Friday, April 20, 2018, New York, NY

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