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    A law firm providing superior intellectual property services uniquely tailored to each client’s needs.

    We take ownership of protecting and helping our clients maximize their IP assets. Not just lawyers – your trusted advisors, counselors and IP professionals.

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Why Should You Hire Peroff Saunders, P.C.?

In our 40 years of experience, we have provided each client with customized legal solutions to meet their objectives. We have filed over 7,000 trademark applications in the United States alone, as well as countless more in virtually every country around the world. From prosecution to licensing to litigation, we have a track record of successfully representing clients - from individuals to startups to some of the largest companies in the world - and protecting their most valuable asset: their intellectual property.

Skilled Legal Advice 

Experience is a key part of developing a successful law practice, and at Peroff Saunders, clients from all over the world benefit from our unique insights and get the skilled legal advice and representation they require. We know that when our client's succeed, we succeed.

Our experience has given us a thorough understanding of intellectual property law. Through exceptional legal skills, practical solutions, and commitment to professionalism, Peroff Saunders P.C. excels at achieving the best possible results in the following practice areas:

  • Trademark
  • Patent
  • Copyright
  • Domain Names
  • E-Commerce
  • Advertising

Peroff Saunders P.C. prides itself on being able to understand and meet the needs of each client. We are relentless in our pursuit of securing, protecting, and enforcing our clients' intellectual property rights. We treat each client with respect and spend the time to make sure that they fully understand the process. 

When you need a lawyer to protect your brand, your invention, or your artistic creation, you deserve an attorney who will listen to your concerns, understand what you want to achieve, and provide the best possible solution for you and your future.

Contact Peroff Saunders, P.C. For A Consultation

There's no need to handle these difficult matters of law all alone. Get the legal advice, counsel, and representation you need. Contact Peroff Saunders, P.C. for a consultation. We can help you decide which course of action will serve your best interests.

Meet the Attorneys

Mark I. Peroff

Partner, New York Office

Mark Peroff is a seasoned intellectual property attorney who has over 25 years of experience helping clients protect their intellectual property in the United States and virtually all countries throughout the world. Mark's positions at the USPTO, industry, and private practice enable him to develop and implement effective strategies to facilitate...

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Jason Kasner


Prior to joining Peroff Saunders PC, Jason worked as an in-house attorney in the intellectual property departments of Fortune 500 companies such as Colgate-Palmolive Company in New York City and Realogy Holding Corporation in Madison, New Jersey. Jason graduated from the Benjamin N. Cardozo School of Law in 2005.

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In the News

Mark Peroff Gives Presentation in Ahmedabad, India, February 25, 2023

Mark Peroff presenting at 16th Annual International Intellectual Property Conclave of MarkPatent.ORG in Ahbedabad, India on February 25. 2023.

“New Challenges in Trademark and Copyright Protection in the Knowledge Based Economy”


Change in direction

A surge in Chinese brands filing in the US signals a bright future, but rejection rates show many are in need of a good lawyer, explains Mark Peroff.

Read the article here

Are you an Intellectual Property Magazine Member?

Read the article on IPM

Bloomberg Law: IP Disputes Increase as Tech Permeates Daily Life

By Ellen Sheng

Partner Mark Peroff is quoted commenting on outdated IP laws in the article.

Read the article on IP Watchdog

Trademark Applications Surge as Overseas Brands Enter U.S. Market

By Mark Peroff, Peroff Saunders

The number of trademark applications being filed by foreign companies with the United States Patent and Trademark Office (USPTO) has been growing steadily – and in China's case rapidly – since 2013. In 2013, a total of 328,180 trademark applications were filed in the USPTO, of which 57,977 (17%) were filed by foreign applicants.

Read the article on Bloomberg

INSIGHT: U.S. Companies Should Brace for Brand Competition From China

By Mark Peroff, Peroff Saunders

Chinese companies filed 46,158 trademark applications with the U.S. Patent and Trademark Office last year, up from 4,702 in 2014. Some suggest this sharp rise is a result of flooding the USPTO with trademark applications for phony products, but Mark Peroff, of Peroff Saunders P.C., argues that there is actually a wave of branded Chinese products coming our way.

Read the article on Bloomberg

Chinese Trademark Surge Signals Possible U.S. Market Entry

By Anandashankar Mazumdar

China-based entities are flooding the U.S. Patent and Trademark Office with trademark applications, a trend attorneys say means more Chinese brand-name products are coming to the U.S. market.

Read the article on Bloomberg

Apparel Design and Creation: What to Do When Copyright Trolls Are Lurking

By Mark Peroff, Peroff Saunders - 10/22/2018

An unpleasantly hot fashion trend has been plaguing the apparel industry — resulting in retailers, apparel manufacturers and textile manufacturers finding themselves trapped in copyright infringement lawsuits made by copyright trolls. These entities go after apparel companies by aggressively and opportunistically enforcing the copyrights they own with the intention of making money in litigation.

Read the article on Apparel Mag

High Court Could Give Copyright Lawyers' Advice Extra Strength

A case headed to the Supreme Court this fall may give extra ammunition to copyright and corporate lawyers urging clients to register their copyrights as soon as they release a product. Fourth Estate Public Benefit Corp., a not-for-profit independent news syndicator, accused LLC of republishing more than 200 Fourth Estate articles without licenses on its website...

Read the article on Bloomberg News

Using Do-It-Yourself or Online Trademark Registration Services Can Prove Disastrous for Entrepreneurs

A Google search for Trademark Registration will return a plethora of results including:

'$69 Online Trademark Filing' '$49 File a Trademark Online' 'Trademark Filing – Save $1000 vs TM Attorney' These services have become increasingly prevalent. To otherwise savvy business people – entrepreneurs who are cautious about expenses and are accustomed to doing things themselves, and foreign companies with great products but are unfamiliar with the intricacies of United States Patent and Trademark law...

Read the article on IP Watchdog

Preventing a Graffiti Copyright Infringement Lawsuit

Filming and photographing in public venues – parks, streets, subway stations – for ads, TV spots and social media videos can produce exciting, creative results for advertising campaigns, but companies advertising should be careful when using shots featuring graffiti in the background.

Read the article on IP Watchdog 

Peroff Saunders, P.C. Is Here for You

At Peroff Saunders, P.C., we focus on intellectual property and we are here to listen to you and help you navigate the legal system.

Practice Areas




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Contact Us Today

Peroff Saunders, P.C. is committed to answering your questions about intellectual property law issues in New York and Chicago.

We offer a free consultation and we’ll gladly discuss your case with you at your convenience. Contact us today to schedule an appointment.