John Pratt joined the firm in 1977. He founded and led the phenomenal growth of the firm's Atlanta patent prosecution practice. Mr. Pratt practices primarily in the patent area, including patent prosecution, litigation and licensing.

Mr. Pratt served, from 1999 through 2001, as general counsel to an Internet consulting firm, Enterpulse, during which period Enterpulse survived the Internet downturn. Mr. Pratt lectures at continuing education seminars, particularly on patent law, licensing, trade secret protection and restrictive covenants. He was involved in drafting the Georgia Trade Secrets Act of 1990.

Mr. Pratt is listed as #1 in the 2014 and the three immediately preceding editions of Chambers USA: America's Leading Lawyers for Business for Intellectual Property and has been listed in that publication each year since 2005. He was listed as an International Who's Who of Patent Lawyers for 2011 and 2013 and was also listed in the 2011, 2013 and 2014 editions of International Who's Who of Business Lawyers in the area of Patent Law. Mr. Pratt has also been listed in The Best Lawyers in America® for 2015 and each of the 23 years immediately preceding. He was recognized as a Georgia "Super Lawyer" in Intellectual Property in 2014 and the five years immediately preceding and for Intellectual Property Litigation in 2009 by Super Lawyers magazine. Mr. Pratt was named by Legal Media Group to its 2010 and 2013 Guide to the World's Leading Patent Law Practitioners. In 2012, 2013 and 2014, he was named a top patent practitioner by IAM Patent 1000 – The World’s Leading Patent Practitioners. Mr. Pratt was recommended by Legal 500 US in the areas of Patent Prosecution and Non-Contentious Trademark Law in 2012 and 2013 and again in 2014 for Patent Prosecution. He was also honored in 2013 and 2014 as a "Leading Lawyer" by Legal 500 US. Mr. Pratt was named as one of Georgia's "Legal Elite" by Georgia Trend magazine. He was recognized as a 2013 and 2014 "IP Star" by Managing Intellectual Property magazine and is AV® rated by Martindale-Hubbell.

An accomplished woodworker, furniture maker and woodworking tool expert, Mr. Pratt devotes a portion of his practice to tool and furniture patent matters. His woodworking has been the subject of an ABA Journal article, and he has been featured in the Fulton County Daily Report and the Atlanta Business Chronicle for the American Flag that he recently created. The flag is made of black cherry (red), curly maple (white) and walnut (brown and dyed blue) and currently hangs in Kilpatrick Townsend's Atlanta office.