Justin J. Lesko, Esq., JD, BSME

Justin J. Lesko is a registered patent attorney and a member of the Illinois State Bar. He is admitted to practice before the U.S. District Court for the Northern District of Illinois.

Mr. Lesko keenly understands the intersection of licensing, litigation, and patent prosecution in contingent fee patent enforcement matters and can navigate clients through those processes to efficient and lucrative resolutions. His experience in identifying infringers, advocating to prospective licensees, and ultimately negotiating license agreements to resolve disputes has led to millions of dollars in licensing revenue for his clients. He has also served a critical role in complex litigations in Federal Court and review proceedings before the U.S. Patent and Trademark Office. Mr. Lesko prosecutes patent applications before the U.S. Patent and Trademark Office, specifically focusing his practice on obtaining enforceable patents that lead to monetization or licensing revenue for his clients. He has briefed and argued several appeals before the Patent Trial and Appeal Board.

Mr. Lesko obtained his BS in Mechanical Engineering from Purdue University in 2006. Following graduation, he worked for two years at engineering and construction company CB&I, first on the design of pipeline systems for the Process Systems Engineering group, and then as a Field Engineer for a Liquefied Natural Gas receiving terminal construction project.

Mr. Lesko graduated from the DePaul University College of Law in 2011 magna cum laude, Order of the Coif, and earned a certificate in intellectual property law. He received the 2011 Allen J. Hoover Memorial Award, given annually to a third-year DePaul law student who is expected to make the greatest contribution to the practice of intellectual property law as determined by the school. He also served as a Member of the DePaul Law Review and participated in the 2011 Giles Sutherland Rich Memorial Patent Moot Court Competition.

Registered Patent Attorney
e: justinlesko@patentit.com
p: 312.752.4357
c: 773.484.3285
f: 312.896.5633