Chicago Patent Attorney | Lesley A Wallerstein, LLC


Read What My Clients Have to Say

Thank you Lesley for informing our firm about all of these issues well in advance of this USA Today article. You have kept us current, relevant and ahead of the curve.”

– J.L., Chief Operating Officer, national philanthropy and development software corporation, patent and trademark client

I came to Lesley with an innovative project requiring an ambitious time frame. Upon an initial consultation, Lesley thoroughly understood the project. I’m grateful for the flexibility that Lesley has shown regarding concerns common with small to medium sized entrepreneurs. She has been accessible and responsive throughout. Lesley’s high level of competencies is paralleled with her guidance and genuine dedication to her clients.

– A.F., entrepreneur and consumer product inventor

Lesley, You rock!

I interviewed several IP attorneys before I hired you. One of them was emphatic that it would be very difficult to get a registered trademark for xxxx. Consequently, I didn’t expect that the process would be so ‘easy-breezy’. You’re a master at your trade. Thank you!

– A.W., entrepreneur, inventor and small business owner

Thank you Lesley, I sincerely appreciate your help navigating this process.  You were outstanding to work with.

-J.H., sporting goods entrepreneur, small business owner and inventor

Lesley was great! Very informative and helpful. I would highly recommend her services.

-S.A., entertainment entrepreneur, trademark client

I have been utilizing the law services of Lesley Ann Wallerstein for a two year period. I have entrusted to her the management of my patent application, confidentiality consents and directly assisted a customer’s attorney with securing a highly valued business contact. Lesley Wallerstein is a very intelligent, efficient and professional and Honest attorney. I strongly recommend anyone who is looking for an attorney who can work with very complicated and highly detailed materials contact this attorney. I will retain Lesley Wallerstein for any existing and future patent applications. I have full confidence in her sound legal advice and services.

– C.S., entrepreneur, inventor and healthcare device engineer

I needed a trademark for my company. Lesley made the process so easy. She kept me informed thru each step. Here emails were detailed but not overwhelming. This was key for me, with all the emails I receive on a daily basis, I wanted someone who could get the process done. I found her to be trustworthy, and when dealing with trademarks, patents etc, this is essential!

– E.B., nationally-recognized entrepreneur and small business owner

Lesley helped my wife and I try and patent an idea we had been working on. I spoke with a few attorneys, but decided to work with Lesley after a phone call and personal meeting. With Lesley, you get extremely intelligent, honest, and straightforward legal counsel. Her rates are very fair, but more importantly, she is upfront with her fee structure and cost of services.

Lesley is a small business owner who is building her practice on her reputation, not that of attorneys preceding her or a name on an existing shingle. I am happy to strongly recommend Lesley and will absolutely use her in the future for my own personal legal needs.

– J.B., independent inventor

I was grateful to have Lesley Wallerstein when I had to navigate the intellectual property process for a project I was working on. Lesley has extensive knowledge of the often complex IP process. I frequently had questions, and she always made herself available to answer them and offer candid guidance. She lets you know upfront what the scope of work will be, and the associated fees. Lesley cares about her clients and their success. She continues to stay involved with my project by sending me resources when she comes across them. It has been a pleasure to collaborate with her.

– K.W., independent inventor

Lesley is truly brilliant! She has such a mind! Her vast knowledge of different aspects of law, combined with her understanding personality gave me the courage to get through an emotionally wrenching case, that nobody wanted. During an exceptionally difficult time for me, she was willing to take my case.  She’s an exceptional person, and a great lawyer! I trust her implicitly! I don’t know what I would have done without her help, determination, patience, and understanding! Thank you Lesley, for taking such good care of me!

– J.S.M., property damage claim

What can I say about Lesley that I’m sure hasn’t been said before. She is very precise with her work, quick, clear and easy to understand, makes sure she gets all of the information before just submitting a patent, and after working with her I had absolutely no concerns about the status of my patent. Use Lesley and you’ll have top notch service from someone who will genuinely care about your product/idea.

– W.H., independent inventor and consumer product entrepreneur, Las Vegas NV


– L.B.  author, photographer, inventor, philanthropist, Chicago