LOS ANGELES (OCTOBER 23, 2025) – Sullivan & Cromwell LLP announced today that Amy E. Proctor, a highly regarded intellectual property (IP) litigator, has joined the firm as a partner in its Los Angeles office. Ms. Proctor brings extensive experience representing clients in complex patent infringement disputes across a wide range of technologies.
“Amy is one of the top trial lawyers of her generation, with exceptional experience at the intersection of law, technology, and business,” said Robert Giuffra and Scott Miller, co-chairs of Sullivan & Cromwell. “Her proven ability to navigate complex IP disputes and deliver results for clients will strengthen our premier IP and litigation practices. We’re delighted to welcome her to the firm.”
“Amy is an outstanding addition to our Los Angeles office,” said Patrick Brown, managing partner of Sullivan & Cromwell’s Los Angeles office. “She embodies our commitment to excellence and teamwork, and will be an important part of our continued growth in California.”
Over the past several years, Ms. Proctor has been repeatedly recognized among the top young litigators in the country. In 2023, she was selected to The Recorder’s “Lawyers on the Fast Track (under 40)” for the second consecutive year. In 2022, Bloomberg Law named her to its nationwide “They’ve Got Next: The 40 Under 40” list, recognizing her “intelligence, drive and common sense thinking on complicated matters.” That same year, she was also honored on the Daily Journal’s “Top 40 Under 40” list, and in 2021, Law360 named her one of only five “Technology Rising Stars.”
“Sullivan & Cromwell is known for its deep team of trial lawyers and its commitment to collaboration across practices and industries,” said Ms. Proctor. “I’m excited to join the firm and to continue helping clients protect their technologies and achieve their business goals.”
Ms. Proctor earned her J.D. from the University of Southern California Gould School of Law, where she graduated Order of the Coif and received the Malcolm Lucas Award. After law school, she clerked for Hon. John A. Kronstadt, U.S. District Court for the Central District of California. Ms. Proctor graduated Phi Beta Kappa from the University of Florida with a B.S. in physics, where her research focused on improving microelectromechanical system performance and measuring quantum forces associated with the Casimir effect.
“Amy is a terrific litigator and trial lawyer with deep experience in complex intellectual property matters,” said Andrei Iancu and Dustin Guzior, co-heads of Sullivan & Cromwell’s Intellectual Property and Technology Litigation Practice. “Her scientific training, combined with her trial experience and practical problem-solving approach, make her an exceptional advocate for our clients in this growing area of our practice.”
About Sullivan & Cromwell's Intellectual Property and Technology Practices
S&C’s IP & Technology Practices consist of partners, counsel and associates across its New York, Palo Alto, Los Angeles and Washington, D.C. offices. Its lawyers regularly receive accolades for their work on IP counseling, litigation and transactions, including recognition in Chambers, the Intellectual Asset Management (IAM) Strategy 300, Global Leaders 300 and Patent 1000, which recognize the best in this multi-disciplinary practice area.
The Intellectual Property and Technology Litigation Practice advises clients on a broad range of IP and technology issues confronting today’s businesses, combining trial experience with a background in handling complex intellectual property disputes, including those that raise antitrust and competition law issues. The team’s litigation work includes enforcing patents, trademarks and other IP rights and defending against claims of infringement.
About Sullivan & Cromwell LLP
Sullivan & Cromwell LLP is a global law firm that advises on major domestic and cross-border M&A; significant litigation and corporate investigations; finance and corporate transactions; and complex antitrust, regulatory, tax and estate planning matters. The firm’s hallmarks are the highest-quality independent advice and intense dedication to solving client problems. Founded in 1879, Sullivan & Cromwell has more than 1,000 lawyers located in offices in New York, Washington, D.C., Los Angeles, Palo Alto, London, Frankfurt, Paris, Brussels, Hong Kong, Beijing, Tokyo, Melbourne and Sydney.