David Lilenfeld Headshot.jpg

david lilenfeld


(404) 400-3887

Professional Experience

David is an intellectual property and business litigation attorney, representing clients in intellectual property disputes involving trademarks, copyrights, patents and trade secrets and in business disputes.  He founded Lilenfeld PC in Atlanta in 2005 and grew that firm until merging with Trusted Counsel in 2016. His business and legal background gives him a unique perspective that enables him to assist clients in making well-informed legal decisions that achieve their strategic business goals.

David is a graduate of Hunter College with a B.A. in philosophy. He earned his J.D. at The Ohio State University Moritz College of Law in 1996, where he was a member of The Ohio State Law Journal.

A trusted resource for the media on intellectual property and business litigation, David has been published in The Atlanta Journal-Constitution, Atlanta Business Chronicle, IPFrontline.com and other business and legal outlets. 

David and his wife, Julie, live in the Buckhead area of Atlanta with their two young sons. In his rare spare time, David plays competitive tennis and chess.


J.D., 1996 Ohio State University Moritz College of Law, Columbus, OH
B.A., 1992 City University of New York, Hunter College, New York, NY

Professional & Business Affilications:

  • Georgia Bar Association Co-Chair of the Litigation Committee of the Intellectual Property Section/Former Chair of IP Section’s Litigation Committee
  • International Trademark Association (INTA) Co-Chair of the Emerging Issues Committee (North America)
  • State Bar of Georgia Former Chairperson of the Litigation Committee of the Technology Law Section
  • Atlanta Bar Association Former Chair of Small Firm Section
  • American Bar Association Member Copyright Litigation Committee


  • Settled a dispute for a local real estate client that was accused of trade infringement by a large Atlanta landmark; obtained a settlement sum for client in exchange for ceasing use of the trademarks.
  • Protected a Florida-based entertainment client that was sued for using a name similar to a competing business; presented weaknesses in the competitor’s case; and settled the dispute, preventing client from having to change its name and pay penalties.
  • Represented a Georgia client to protect copyrighted material from a manufacturer of pet memorial items; upon establishing liability, the infringer paid the client a significant settlement sum out of court.
  • Defended a New York client accused of a copyright infringement; using procedural grounds, represented the client and the lawsuit was dismissed. 
  • Represented a hardware importer that was threatened with an infringement claim by an owner of electronic equipment hardware patents; defended the importer by pointing out infirmities in the patent, thereby persuading the owner not to file any claim.


  • Selected by his peers as one of Georgia Trend’s 2012 Legal Elite in Intellectual Property
  • Recognized in Super Lawyers from 2014 through 2016 for Intellectual Property Litigation, recognition reserved for only five percent of practicing attorneys.
  • Named Rising Star in 2009 and 2010 by Georgia Super Lawyers, which recognizes the best up-and-coming attorneys in the state.

Presentations, Publications, Etc.:

  • “Growth Companies: An Introduction to Intellectual Property Protections – An IP Litigator’s Perspective,” State Bar of Georgia (September 12, 2014)

  • “Expanding Role of Copyright in Digital Media,” IP Law Institute, Amelia Island (September 2014)

  • U.S. Trademark and Unfair Competition Law, Judge, INTA’s annual Saul Lefkowitz Moot Court Competition (Invited 2008-2013)

  • “Intellectual Property Litigation,” Georgia Tech MBA Program (January 2013)

  • Intellectual Property Overview,” Technology Association of Georgia (August 2012)

  • “Patent Wars,” Georgia Tech MBA Program (February 2012)

  • “Tread Warily with Trademarks,” Atlanta Journal-Constitution (October 2011)

  • “Cloud Computing 101: Considerations for the Small Firm Lawyer,” Atlanta Bar Association (September 2011)

  • “Trademarks Amid Tragedy,” Atlanta Journal-Constitution (June 2011)

  • “An Interview with Atlanta Intellectual Property Attorney David M. Lilenfeld,” Georgia Business Directory Network (May 2011)

  • “Q&A: Avoiding Social Media Legal Pitfalls,” Atlanta Business Chronicle (February 2011)

  • “Guard Intellectual Property,” Atlanta Journal-Constitution (February 2011)

  • “The Social Network – An IP Litigator’s Review of the Movie about Facebook,” IP Law Section of The State Bar of Georgia (January 2011)

  • “Protect Your Company’s Trademark on the Internet,” Intellectual Property Today (2011)

  • “Shield Brand from Ad Tricks,” Atlanta Journal-Constitution (December 2010)

  • “How Should I Prune My IP Portfolio?,” Managing Intellectual Property (December 2010)

  • “Five Strategies Business Owners Can Use to Protect Their Intellectual Property,” IPFrontline.com (November 2010)

  • “Is Your Company’s Trademark Being Hijacked,” IPFrontline.com (November 2010)

  • “Protection of IP for Athletes/Celebs,” Entertainment, Sports and IP Conference, Guanacaste, Costa Rica (November 2010)

  • “Legal Issues of Self-Publishing,” Strategic Self-Publishing Conference, Atlanta (November 2010)

  • “Has Notice Pleading Gone Extinct?: A Summary of the Shift in the Federal Pleading Standard,” Small Firm Section of the Atlanta Bar Association Newsletter (August 2010)

  • Pleading Requirements under Twombly/Iqbal, Intellectual Property Section of the State Bar of Georgia (March 2010)

  • “Trademark Oppositions and Cancellations in the U.S.,” International Intellectual Property Group (February 2009)

  • “Professionalism in Our Profession,” Young Lawyers Association Webinar (March 2009)

  • “Standing and Other Pre-Suit Considerations in Copyright and Trademark Disputes,” Intellectual Property Section of the State Bar of Georgia (December 2008)

  • “IP Landmines in Advertising, Electronic Media and Video Games,” Entertainment & Sports Law Conference and IP Law Institute (November 2008)

  • “Hot Topics in Counterfeiting,” Entertainment & Sports Law Conference and IP Law Institute (November 2008)

  • “Monetizing Intellectual Property,” Intellectual Property Section of the State Bar of Georgia (June 2008)

  • “The Patent Toolkit: Tools to Keep on Hand to Protect and Enforce Intellectual Property,” Georgia IP Newsletter (June 2008)

  • “Tips to Help Your Clients Avoid Trademark Disputes,” Small Firm Section of Atlanta Bar Newsletter (June 2008)

  • “’Fair Use’ Defense in Trademark Cases,” Intellectual Property Section of the State Bar of Georgia (January 2008)

  • “Introduction to Intellectual Property Issues,” National Business Institute Seminar (December 2007)

  • “Fundamentals of Intellectual Property Law,” National Business Institute, co-author (December 2007)

  • “E-Discovery: Definitions, Applications and Federal Rules of Civil Procedure Changes,” IPE Seminar (May 2007)

  • “Enforceability of Clickwrap and Webwrap Agreements,” Technology Law Section of Georgia Bar Newsletter (Summer 2003)

  • “Discovery in Technology Litigation: How to Dot the ‘i’ and Cross the ‘t’,” Technology Law Section Newsletter (June 2002)

  • “Why Congress Should Eliminate the Multiple Performance Doctrine,” Ohio State Law Journal, (1997)