John J. Regan

Senior Counsel

Regan, John J.

Jack Regan is a senior counsel in the firm's Litigation/Controversy Department and a member of the Intellectual Property Litigation, International Litigation, and Business Trial Practices. He was the original chair of WilmerHale's Intellectual Property Litigation Practice Group and co-chaired the firm's Pro Bono and Community Service Committee. He also served as the President of the Boston Bar Association. Mr. Regan joined the firm in 1978.


Mr. Regan's practice concentrates on pretrial, trial and appellate aspects of intellectual property and commercial litigation in federal and state courts and in administrative agencies. He has been involved with a wide range of legal matters relating to patents, trade secrets, computers, copyrights, trade dress, trademarks, contracts, licenses, unfair competition and deceptive trade practices cases.

Mr. Regan has litigated cases in such high technology areas as pharmaceuticals, cell phones, digital cameras, PDA devices, noise-cancelling headphones, electronic commerce, Internet routers, enzyme electrodes, blood analyzers, glucose monitoring devices, electronic pre-press publishing, DNA amplification systems, videoconferencing, semiconductors, golf balls, ultrasound transducers, document imaging, electronic storage, paging and voice mail. In the patent area, he has litigated biotechnology, drug, chemical, electrical, mechanical, medical device, software and Internet patents.

Mr. Regan has been counsel to such clients as: Apple, Bose, Intel, Novartis Pharmaceuticals, Research in Motion (RIM Blackberry), Eastman Kodak, Wyeth, Analog Devices, Bottomline Technologies, Broadcom, JPMorgan Chase, Braintree Laboratories, Juniper Networks, Nova Biomedical, Harvest Technologies, Wolfson Microelectronics, Campanelli Companies, SoundBite Communications, Inc., Art Technology Group, Federal National Mortgage Association (Fannie Mae), American Superconductor, Roxbury Latin School, Ironwood Pharmaceuticals, Penwest Pharmaceuticals, Nitromed, and Thorn EMI, N.A.

The US District Court for the District of Massachusetts appointed Mr. Regan as the trustee in bankruptcy for Rare Coin Galleries of America, Inc. He has also served as an appointed arbitrator in complex commercial dispute proceedings before the American Arbitration Association.

Mr. Regan has an active and diverse pro bono practice, ranging from the representation of nonprofits in the arts, urban education, low income housing, and international development to minority-owned businesses, a parole hearing in a murder case, and veterans' disability claims. His pro bono clients have included the Institute for Justice and Democracy in Haiti, Seed Global Health, and the Boston Celtics Shamrock Foundation.

During the year following law school, Mr. Regan served as a law clerk to the Honorable Andrew A. Caffrey, former chief judge of the United States District Court for the District of Massachusetts. He has also worked as a legal intern in the Special Criminal Prosecutions Division and in the Civil Division of the US Attorneys' Offices in Newark, New Jersey, and the Southern District of New York, respectively.

Prior to his legal studies, Mr. Regan served as a lieutenant in the US Navy aboard a destroyer escort, the USS Bagley, which was homeported in San Diego, California, and deployed to the Western Pacific, Indian Ocean, Gulf of Tonkin and Persian Gulf areas. He is a member of the Naval War College Foundation, and active with the Massachusetts Iraq and Afghanistan Fallen Heroes organization.

Honors & Awards

Most recently, Mr. Regan was honored with the Thurgood Marshall Award from the Boston Bar Association for his career-long commitment to pro bono work, and particularly his creation of programs for veterans and their families.

In October 2015, Mr. Regan was honored with the Adams Award from the Massachusetts Supreme Judicial Court for distinguished service and outstanding commitment in providing volunteer pro bono legal services to veterans in need and to victims of the cholera outbreak in Haiti.

Mr. Regan also has received the Veterans Legal Services' Distinguished Service Award for his contributions in achieving VLS's mission of promoting self-sufficiency, financial security and stability of military veterans and the homeless.

Mr. Regan received the WilmerHale's Reginald Heber Smith Award for his contributions to community service. He has also received awards from the US Department for Housing and Urban Development and the American Association of Housing for the Aging for his work in providing housing for low-income elderly persons.

Mr. Regan was honored with the prestigious "Good Guys" Award from the Massachusetts Women's Political Caucus. The award is presented to men who have made significant contributions to their community and to the cause of equal political, economic and social rights for women.

Mr. Regan was named a “New England Super Lawyer (formerly "Massachusetts Super Lawyer") in intellectual property litigation in the 2004 through 2017 editions of Boston Magazine. He was also recognized as a lead lawyer in the 2015 edition of Benchmark Litigation for his work in commercial and intellectual property litigation, and is recommended in the 2016 edition of The Legal 500 United States for intellectual property: patent litigation.

Publications & News


June 9, 2017

The Legal 500 United States 2017 Recognizes 125 WilmerHale Lawyers Across 28 Practice Areas

The Legal 500 United States has released its 2017 rankings, recommending 125 WilmerHale lawyers—including 12 who are named to its elite “Leading Lawyers” list and two on its “Next Generation Lawyers” list—and 28 practice areas in its 11th edition.

May 9, 2017

WilmerHale Earns Win for Braintree Labs in Hatch-Waxman Case

Braintree Laboratories, Inc. was victorious at the Federal Circuit when the appeals court reversed a district court's grant of summary judgment of noninfringement for Breckenridge Pharmaceutical and remanded with instructions to enter judgment in Braintree's favor.

June 22, 2016

The Legal 500 United States 2016 Recognizes 111 WilmerHale Lawyers Across 30 Practice Areas

The guide's rankings are based on a series of criteria, including client feedback, interviews with private practice lawyers, and its own research.

March 29, 2016

Jack Regan to Receive BBA Thurgood Marshall Award

The Boston Bar Association will present this year's Thurgood Marshall Award to Senior Counsel Jack Regan for his work to improve access to justice for veterans and other vulnerable populations.

November 17, 2015

Massachusetts Supreme Judicial Court Honors John Regan for Pro Bono Work for Veterans

Partner and Co-Chair of the firm's Pro Bono and Community Service Committee John Regan was recently honored with one of the most prestigious pro bono accolades in the country during the 2015 John Adams and John Quincy Adams Pro Bono Publico Awards Ceremony at the Massachusetts Supreme Judicial Court.

June 12, 2015

Braintree Labs Defeats Novel Labs in Ongoing Patent Infringement Case

On June 2, 2015, WilmerHale obtained a significant victory for Braintree Laboratories, Inc. (Braintree) in a patent infringement matter at the US District Court for the District of New Jersey.

June 25, 2014

WilmerHale Secures String of Supreme Court and Federal Circuit Wins

Two US Supreme Court decisions handed down on June 12 mark the latest in a string of victories secured by WilmerHale's Appellate and Supreme Litigation Court Practice during the 2013-2014 term.

April 15, 2014

WilmerHale and Cathedral High School Come Together to Organize Career Day

WilmerHale organized a biennial morning Career Day for Cathedral High School students on April 10. Professionals from a wide variety of career fields and industries spoke in small group panels across 15 classrooms at the school's South End campus.

June 19, 2013

Braintree Labs Wins Patent Infringement Case Against Novel

On June 19, WilmerHale obtained a favorable final judgment in the US District Court for the District of New Jersey for Braintree Laboratories, Inc. (Braintree) in its patent infringement case against Novel Laboratories (Novel).

May 24, 2013

Firm Receives Pro Bono Award From Women’s Bar Foundation

On May 14, the firm was recognized during a Women’s Bar Foundation (WBF) event in Boston for its longstanding dedication to representing survivors of domestic violence and assisting seniors in need of end-of-life documents.

Professional Activities

Before becoming President of the Boston Bar Association (BBA), Mr. Regan chaired the BBA'S Intellectual Property Litigation Committee, was co-chair of the BBA's Litigation Section, chaired the BBA's Nominating Committee, was a member of the BBA Council and the Task Force on Children's Outreach, and served as a trustee of the Boston Bar Foundation (BBF) and chair of its Community Projects Committee. He currently is a member of the BBF's Grants Committee, which allocates funds to local legal services agencies.

Mr. Regan currently is a member of the BBA's Military and Veterans Legal Services Law Committee. He also has been a member of the Civil Litigation and Business Law Sections of the Massachusetts Bar Association, the Litigation and Intellectual Property Sections of the American Bar Association, the Federal Circuit Bar Association, the American Intellectual Property Law Association, the Federal Bar Association, and the Boston Patent Law Association.

The Justices of the Supreme Judicial Court appointed Mr. Regan to the Court's Standing Committee on Pro Bono Legal Services. In addition, the Chief Justice for Administration and Management of the Massachusetts Trial Court appointed Mr. Regan to a committee studying the consolidation of the Trial Court's operations.

Mr. Regan has spoken on seminar panels at programs sponsored by Massachusetts Continuing Legal Education, the Boston Bar Association, the Boston Patent Law Association, the American Arbitration Association, the PricewaterhouseCoopers Intellectual Property Leadership Forum, and the Pro Bono Institute. He also has presented on patent law at the University of Notre Dame Law School.

Mr. Regan has participated as an advisor in the Trial Practice Program and taught a civil procedure class at Harvard Law School. He also has been a member of the Subcommittee for Patent Litigation of the CPR Institute for Dispute Resolution.

Community Involvement

Mr. Regan is currently Secretary of the Board of Directors of Oxfam America, a member of the Board's Executive Committee, and previously served on its Leadership Council. He also is on the Advisory Council of Massachusetts Foundation for the Humanities. Mr. Regan chaired, and currently is a member of, the Board of Trustees at LaSalle Academy, a 1,500-student middle and high school in Providence, Rhode Island, and a member of its Hall of Fame. He also is a trustee of the Lynch Foundation, a major charitable foundation in Boston.

Mr. Regan has served for more than 20 years as a trustee of the Catholic Schools Foundation Board, including as its President. The Foundation raises scholarship funds for 6,000 students at 60 inner city elementary and high schools. He chairs its Trustee Nominating Committee. Mr. Regan also chairs the Catholic Schools Council, which provides strategic planning, and financial and management guidance, for the schools. He also chaired the Search Committee for the Superintendent of Schools for the Archdiocese of Boston. 

Mr. Regan also served as the founding board chair of Discovering Justice: The James D. St. Clair Court Public Education Project, which provides educational programs for children and adults about the Constitution, the judiciary, and our democracy, and received its Champion of Democracy award. He recently completed nearly six years on the Massachusetts Board of Advisors for Citizen Schools, an innovative nonprofit that provides extended learning and apprenticeship opportunities to middle school students in Boston and nationally.

Mr. Regan has also been a trustee of the Roxbury Latin School; and a director of Young Audiences of Massachusetts, Inc., a nonprofit corporation that promotes the arts in schools. Mr. Regan is the former president and a director of Milton Residences for the Elderly, Inc., a nonprofit corporation that provides low-income housing for elderly and handicapped persons.

For many years, Mr. Regan was co-chair of WilmerHale's Pro Bono Committee, which manages the firm's extensive pro bono legal services and community service programs, and its relationship with Harvard Law School's Legal Services Center.

Mr. Regan chaired the task force that created the firm's innovative Youth and Education Initiative, a partnership with four organizations that offer educational opportunities to elementary, middle school, and teenage children in Boston's inner city. The Youth and Education Initiative was featured in Common Interest, Common Good, a book published by the Harvard Business School Press that described creative models of corporate philanthropy.


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JD, New York University School of Law, 1977, Root-Tilden Scholar; Articles Editor, NYU Law Review

BA, summa cum laude, University of Notre Dame, 1971, Phi Beta Kappa

Bar Admissions



The Hon. Andrew A. Caffrey, US District Court for the District of Massachusetts, 1977 - 1978

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