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Lesley A. Wallerstein, LLC

Law Firm
5 (27 reviews)

About

Chicago area patent attorney respected by peers and trusted by clients. Handles patent, trademark, and copyright law from Northbrook, Illinois.

Services

  • Patent Prosecution
  • Trademark
  • Copyright

Reviews

Google Reviews
Susana Guillen Feb 2025

Collaborating with Lesley has been a great experience. She has been incredibly helpful to my business, always going above and beyond for her clients. Her responses are quick, insightful, and informati...

Deb Norton Jan 2026

I contacted Lesley regarding a copyright infringement issue, and she responded immediately with a commitment to help. From our first conversation, she demonstrated genuine attentiveness—listening care...

Jodie Toole Oct 2025

It was a pleasure to work with Attorney Lesley Wallerstein. She provided a thorough explanation of the trademark process. She responded immediately to my questions and concerns. She got the job done! ...

Tom Breen Jul 2025

Lesley prepared a provisional application for my invention. It was a smooth experience. She understood very well the key unique claims of the invention and wrote accordingly. I was a pleasure working ...

Andrew Hays Jun 2025

Intellectual property is a very confusing area of the law. When I needed advice related to rebranding my firm, Lesley provided simple explanations of the several different options I had. I would not h...

John B. Jan 2025

My company has been a client of the Law Office of Lesley A. Wallerstein, LLC for over 7 years and couldn't be more satisfied. Lesley's attention to detail and diligence is exceptional. Having access t...

CSL Sep 2024

Every time I have a conversation with Lesley I count my blessings that she represents our company. I highly recommend her to anyone involved with a trademark

Windy City Industries Jun 2024

Lesley was a pleasure to work with. She is very knowledgeable in the subject matter. She was able to help us work around an obstacle within a trade mark application when other attorneys did not think...

andrei brezhneu May 2024

Sofia +1 case -1 life

Noel Nonah Mar 2024

Lesley was an amazing lawyer to work with, she helped me with my patent and gave some good pointers before filing. Lesley kept updating me through out the process and notified me what to expect next. ...

Jawwaad Malik Jan 2024

Collaborating with Lesley has been a privilege. My wife and I faced a challenging infringement issue, which was unfamiliar territory for us. Lesley demonstrated promptness and a keen ability to grasp ...

jpacro Nov 2023

Lesley, was phenomenal to work with. From beginning to end her process proved to work well. Allowing me to provide all the information needed. She was accommodating during meetups to provide demos for...

Josh S Jan 2023

Lesley was a tremendous help to our needs. Her knowledge of trademark law made for an easy and expedient process working with her. Definitely recommend!

Oskar Vahtra Dec 2022

Lesley did an excellent job creating a trademark use and product distribution agreement for my business. She covered every angle and made sure that nothing was left out. I highly recommend Lesley, she...

Sachin Patel Nov 2022

It has been an absolute pleasure working with Lesley and her firm to protect my intellectual property. Lesley provided us with excellent service as well as the information we required about the USPT...

Richard Clatch Jul 2022

Working with Lesley Wallerstein was a real pleasure. The most straightforward, direct, and honest experience with a lawyer I have ever had. She got the job done as promised. I very highly recommend...

Matthew Ellis Jun 2022

Lesley is a tremendously intelligent and relentlessly industrious soul. She was able to distill my complicated technology into a beautifully simple terms. In doing so, she did more than put my ideas ...

Adriana Amoa May 2022

Working with Lesley was a breeze, she helped me understand the entire process on trademarking my business Logo. I was recommended by a friend to her and it has been such an easy process for me . I wil...

EJ Kim Feb 2022

Lesley was extremely thorough and patient with us as we were going through this patent filing process for the first time. We needed a lot of education and she was able to offer that even before we sta...

Kevin McQuillen Aug 2020

This was my first time trying to obtain a patent. I did research before contacting lawyers and I spoke to a few lawyers before I found Lesley. I hired her to conduct a limited patent search and to fil...

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