John B. Quinn

John B. Quinn
Name	John B. Quinn
Birth place	United States
Occupation	Attorney, litigator
Known for	Complex litigation, intellectual property, antitrust

John B. Quinn is an American trial lawyer and litigation strategist known for leading high-stakes cases in intellectual property, antitrust, and commercial litigation. He has represented major technology firms, pharmaceutical companies, and financial institutions in disputes across the United States and internationally. Quinn's work spans federal courts, appellate tribunals, and arbitration forums, earning recognition from peer organizations and legal publications.

Early life and education

Born and raised in the United States, Quinn completed undergraduate studies before attending law school, where he received a Juris Doctor degree. His education included rigorous training in trial advocacy and appellate practice, with early mentors connected to prominent figures at institutions such as Harvard Law School, Yale Law School, Columbia Law School, Stanford Law School and University of Chicago Law School. During his formative years he participated in law review activities and moot court competitions associated with American Bar Association chapters and regional legal workshops.

Legal career

Quinn began his legal career at major national law firms and later co-founded or led litigation practices at boutique and global firms that served clients in sectors represented by Apple Inc., Google LLC, Microsoft Corporation, Samsung Electronics and Intel Corporation. He has argued significant matters before the United States Court of Appeals for the Federal Circuit, United States Court of Appeals for the Ninth Circuit, and the Supreme Court of the United States in cases involving patent law, antitrust claims, and complex commercial disputes. Quinn’s practice often partnered with in-house counsel from corporations such as Pfizer Inc., Johnson & Johnson, Goldman Sachs, Morgan Stanley, and ExxonMobil.

Notable cases and litigation

Quinn led litigation teams in high-profile trials and appeals, including patent infringement actions against and by technology giants like Oracle Corporation, IBM, Cisco Systems, and Qualcomm. He represented clients in antitrust suits that implicated entities such as AT&T Inc., Verizon Communications, Broadcom Inc., and Intel Corporation before federal courts and regulatory bodies like the Federal Trade Commission and the Department of Justice (United States). His docket included complex commercial disputes connected to mergers and acquisitions involving companies like Time Warner, Comcast Corporation, Amazon.com, Inc., and Facebook, Inc. (now Meta Platforms). Quinn also handled high-stakes licensing and trade-secret cases for life sciences firms including Merck & Co., Bristol-Myers Squibb, and Amgen Inc..

Corporate and advisory roles

Beyond courtroom advocacy, Quinn has served as outside counsel and strategic advisor to boards and executive teams at multinational corporations, private equity firms such as The Carlyle Group, KKR & Co. Inc., and Blackstone Group, and venture investors linked with Sequoia Capital, Andreessen Horowitz, and Accel Partners. He has provided counsel on litigation risk, regulatory exposure before entities like the Securities and Exchange Commission, and cross-border disputes involving jurisdictions such as England and Wales, Germany, China, and Japan. Quinn has also appeared as counsel in international arbitration forums under rules of the International Chamber of Commerce and London Court of International Arbitration.

Publications and professional affiliations

Quinn has authored and contributed to articles, treatises, and practice guides on trial strategy, patent litigation, antitrust enforcement, and appellate procedure published in journals and outlets associated with The American Lawyer, The New York Times legal section, and law reviews of institutions such as Harvard Law Review and Yale Law Journal. He is a member of professional organizations including the American Bar Association, the Association of the Bar of the City of New York, the Federal Circuit Bar Association, and the International Bar Association. Quinn has lectured at forums hosted by Practising Law Institute, Federal Judicial Center, and major law schools including Stanford Law School and NYU School of Law.

Awards and recognitions

Peers and publications have recognized Quinn with listings and honors from directories and organizations such as Chambers and Partners, The Legal 500, Best Lawyers in America, and Law360’s Top Litigators. He has been cited in industry rankings for leadership in intellectual property litigation, antitrust counseling, and commercial trials, and has received awards from bar associations at state and national levels including sections of the American Bar Association and civic legal societies tied to New York City and San Francisco.

Personal life and philanthropy

Quinn is active in philanthropic endeavors and civic institutions, supporting causes affiliated with universities and cultural organizations like Harvard University, Yale University, Stanford University, Metropolitan Museum of Art, and public interest groups connected to legal aid and access to justice. He serves on advisory boards and trusteeships for nonprofit entities and has participated in fundraising and governance efforts for educational scholarships and community legal clinics.

Category:American lawyers