The Legal 500

Twitter Logo Youtube Circle Icon LinkedIn Icon

Hunton Andrews Kurth LLP

Work +1 212 425 7200
Fax +1 212 425 5288

John Flock

Work +1.212.908.6490
Hunton Andrews Kurth LLP

Work Department

Intellectual Property




John is a high-stakes patent litigator whose experience has generated professional achievement awards and American Law Journal “Top Jury Verdict” recognition. He combines 20 years’ patent litigation experience with nine years as a former New York City Assistant District Attorney to represent his clients in high-stakes battles in the ITC and district courts.

John also has developed particular skill in patent valuation by using his experience in litigation and in the negotiations of major portfolios to determine real world value, particularly focusing on the key patents that drive value. He has worked with global Fortune 500 companies on some of their major acquisitions of patent assets in the past few years.

John has built long-term relationships with sophisticated clients including Sony, Lenovo, Toyota, Fisher-Price, HBO, the Federal Reserve Bank of New York, and others. He has been lead outside counsel in global disputes, litigating in the U.S. and advising on patent strategy in Europe and Asia. 

John holds an undergraduate degree in physics and has significant experience designing and implementing computer programs, supervising computer programming staff, and serving as court-appointed receiver for a software company.

Independent publications whose rankings are based on evaluations from in-house counsel have recognized him for excellence in practice, including the 2013-2014, 2016-2017 editions of IAM Patent 1000 – The World’s Leading Patent Practitioners and the 2014 edition of The Legal 500 United States, and John has been named a 2016 New York “IP Star” by Managing Intellectual Property. He is a speaker and author on intellectual property issues.


  • American Bar Association
  • Asian American Bar Association of New York, Past President
  • Computer Law Association
  • New York Patent, Trademark and Copyright Law Association


  • JD, 1980, Pace Law School
  • BS, 1974, The Cooper Union

United States: Intellectual property

Patent litigation: full coverage

Within: Patent litigation: full coverage

Hunton Andrews Kurth LLP is particularly experienced in district court litigation, but also shows strength in appellate work; Hatch-Waxman litigation is another key area. Washington DC’s John Hutchins is defending Apple in litigation against Limestone Memory Systems and is also representing the client in the corresponding IPR proceeding. In New York, Michael Lennon successfully assisted defendant Volkswagen Group of America in an infringement litigation involving multiple IPRs against West View Research regarding patents on a wireless apparatus and a display apparatus. Susan Smith in Washington DC and John Flock in New York are also noted. Clients include Kawasaki Rail Car and Volusion.

[back to top]

Back to index

Legal Developments worldwide

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to