Attorney profile
Lesley A. Wallerstein, LLC
The short version
Northbrook-based patent, trademark, and copyright attorney Lesley A. Wallerstein, LLC provides IP application preparation, searches, and counsel backed by MIT training, former patent examiner experience, and a 5.00 rating across 31 reviews.
Strengths
- Extensive patent, trademark, and copyright experience, including more than 75 patents, over 300 registered trademarks, and dozens of copyright registrations according to the firm's website.
- Technical and legal background as an MIT graduate and former patent examiner, with repeated Illinois Super Lawyers recognition from 2019 through 2026.
- Reviewers consistently highlight responsive communication, prompt replies, and proactive updates throughout patent and trademark matters.
- Client-friendly approach, with reviews noting clear explanations, patience with first-time inventors, and attention to individual business goals.
- Demonstrated ability to handle complex or previously declined matters, including trademark conflicts, infringement issues, and favorable resolutions.
Considerations
- Wallerstein clients commend prompt replies and easy scheduling rather than recurring difficulties arranging attorney contact.
- Feedback describes patient explanations across patent, trademark, and copyright matters, without repeated complaints about confusing advice.
About Lesley A. Wallerstein, LLC
Lesley A. Wallerstein, LLC is a Northbrook, Illinois law practice focused on patent, trademark, and copyright law. The firm serves inventors, entrepreneurs, and businesses seeking to protect intellectual property through applications, searches, and related legal guidance. Its services include patent, trademark, and copyright applications as well as trademark searches. Attorney Lesley A. Wallerstein is an MIT graduate and former patent examiner, giving her a technical and procedural background that informs her work on patent and trademark filings. The website notes that she has prosecuted more than 75 design and utility patents, over 300 registered trademarks, and dozens of copyright registrations over 15 years in practice. She has also been selected to the Illinois Super Lawyers list from 2019 through 2026, a distinction described as reserved for the top 5% of lawyers in the state, and the firm is a WBENC-certified woman-owned business.
Clients frequently praise the firm for responsive communication, clear explanations, and a practical approach to complex intellectual property matters. Reviews mention help with patent and trademark applications, trademark searches, copyright infringement issues, and business agreements. Several reviewers note that Lesley takes time to understand the invention or business goals, explains options without talking down, and keeps clients informed throughout the process. Others highlight her ability to handle matters that other attorneys declined or considered difficult, including trademark conflicts and infringement disputes. The practice appears especially suited to first-time inventors, small business owners, and companies seeking ongoing IP counsel; reviewers describe long-term relationships and repeat engagements.
The overall tone of the reviews is strongly positive, with all 31 ratings at 5.00. Reviewers commonly mention prompt responses, easy scheduling, thoroughness, and personalized attention. Some also value her willingness to provide unsolicited advice and to resolve matters efficiently. The review set also contains a few very brief or non-substantive entries, which limits deeper insight into the full client experience. The website includes a standard disclaimer that contacting the firm does not create an attorney-client relationship and that site information is not legal advice.
Clients also praise convenient scheduling and accessible conversations with attorney Lesley A. Wallerstein about their IP questions.
Recurring feedback
What clients consistently mention
- Reviewers frequently praise prompt, responsive communication and easy scheduling.
- Clients often mention clear, patient explanations of patent, trademark, and copyright processes.
- Several reviews highlight successful outcomes in trademark registration, patent filing, and infringement resolution.
- Feedback commonly describes personalized attention, long-term relationships, and a professional, knowledgeable approach.
All reviews
5 out of five stars based on 31 reviews.
Login to see all reviews