Justin Lesko
Registered Patent Attorney
Illinois
Patent Bar, IL
About
My patent prosecution practice focuses on drafting patents and claims that are valuable (and someday enforceable) for my clients.
I also advise start-ups and small companies on all aspects of intellectual property protection and defense, including developing patent portfolios, trade secrets, responding to demand letters,… read more and intellectual property litigation.
upcounsel
experience
Representative Clients
Practice Areas
Client Reviews
"Steve Lisa and Justin Lesko have both helped me navigate the process of filing my first provisional patent. As a novice patentee, they spent ample time with me; as I gained greater understanding of the entire patent process. The culture of this law firm is definitely centered on professionalism and integrity. Both of these gentlemen are easy to reach and effective in their craft. As I continue to build my business and promote my product as “patent pending”, I am at ease knowing that my legal rights are properly represented. Aside from feeling well advised, they have made every step of the process rewarding, easy, and pleasant. In the beginning, I was initially seeking a service… however, in the end, I found a lasting relationship that I would be proud to share with my friends and family. - Alex Babcock"
"Steve, Michelle, and Justin recognize that knowledge is power and they use it to their advantage. They are tough and they are creative. I wanted a partnership when I hired their firm and that is exactly what I got. As difficult as it is to be service-oriented in this business, Steve and his entire team were extremely thorough in their communication about my case, quickly and efficiently made recommendations that were on the mark without fail, and they were responsive in a manner that I could understand and be involved in when it was time to make a decision. Most of all, they are three of the most genuine and honest people you will ever hope to meet. - Mary Kay Grenier, Owner, HPL, LLC"
Work History
Law Offices of Lisa & Lesko, LLC
Partner, Registered Patent Attorney
Feb 2019 - Present
Practice involves all aspects of intellectual property protection and defense, with a focus on patent litigation, licensing, enforcement, and prosecution.
Law Offices of Steven G. Lisa
Registered Patent Attorney
Nov 2011 - Feb 2019
Practice involves all aspects of intellectual property protection and defense, with a focus on patent litigation, licensing, enforcement, and prosecution.
Law Offices of Steven G. Lisa
Intern
Feb 2010 - Nov 2011
Assisted with all aspects of intellectual property protection and defense, with a focus on patent litigation, licensing, enforcement, and prosecution.
DePaul University College of Law
Research Assistant
Aug 2009 - Feb 2010
Tax Law Research
Ladas & Parry LLP
Law Clerk
Feb 2009 - Aug 2009
Assisted with Trademark matters.
CB&I
Mechanical Engineer
Jan 2007 - Jul 2008
Field Engineer for construction of a major five tank LNG (Liquified Natural Gas) import facility.