We take ownership of protecting and helping our clients maximize their IP assets. Not just lawyers - your trusted advisors, counselors and IP professionals.
A law firm providing superior intellectual property services uniquely tailored to each client's needs.
Services
Peroff Saunders provides a full range of intellectual property legal services.
Counseling
in regard to intellectual property rights, disputes and transactions
Litigation and Enforcement
of intellectual property rights and unfair competition in federal courts throughout the U.S.
International Searching and Clearance
of trademarks in over 150 countries
Opposition and Cancellation Proceedings
in the United States Patent and Trademark Office
Filing and Prosecution
of trademarks, copyrights, designs and domain names in the U.S. and internationally
Domain Name Disputes
under the Uniform Domain Name Dispute Resolution Policy
Negotiating and Drafting Agreements
pertaining to intellectual property rights
Audits
of trademark portfolios
Anti-Counterfeiting Enforcement Programs
to stop importation and distribution of counterfeit goods
Supervision and Management
of domestic and global trademark portfolios
Recording
of trademarks and copyrights with US Customs and Border Control
The Team
Mark I. Peroff
Mark I. Peroff
Partner, New York Office

mark.peroff@peroffsaunders.com

Main: 646.898.2030
Direct: 646-898-2033

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 accomplishing client's goals of procurement, monetizing, enforcement, and defending IP rights. Mark's clients span the globe, as well as the spectrum of for-profit and not-for- profit enterprises. Having filed over 7,000 US trademark applications and been responsible for the procurement of countless foreign applications, as well as representing clients in trademark and copyright litigation in federal courts throughout the US, business transactions, his peers are correct when they say "Mark is the go-to person" regardless of the nature of the problem. He gets the job done with energy and enthusiasm.

Bar Admissions
  • N.Y. State Bar
  • Federal District Court for Southern District of New York
  • U.S. Court of Appeals for the Federal Circuit

Education
  • B.A. History – University of Cincinnati.
  • Juris Doctor – University of Cincinnati

Associations
  • Association for the City of New York
  • Asociación Interamericana de la Propiedad Intelectual (ASIPI)
  • European Community Trademark Association (ECTA)
  • International Trademark Association (INTA)
  • Pharmaceutical Trademark Group
  • American Jewish Committee - Member of Board of Directors, NJ Chapter
  • Congregation B'nai Jeshurun, NJ - Member Board of Trustees
Darren W. Saunders
dsaunders@peroffsaunders.com

Main: 646 .898 2030
Direct: 646 898 2052

Mr. Saunders's practice is focused on intellectual property litigation, counseling and transactional matters. He has 30 years of experience in the areas of trademark, patent, copyright and unfair competition law. Mr. Saunders has extensive litigation experience, having litigated in numerous federal courts throughout the United States, as well as in the Trademark Trial and Appeal Board and the International Trade Commission. He has been involved in several high profile litigation matters that have received significant media attention.

Mr. Saunders is regularly involved in matters concerning fashion and the apparel industry as well as other industry sectors, including consumer products and pharmaceuticals. He has extensive experience in contract negotiation and drafting, including license and consent agreements, asset purchase agreements and other agreements related to intellectual property transactions. Mr. Saunders also has broad experience in anti-counterfeiting enforcement, including working with United States Customs and Border Protection to prevent importation of counterfeit goods, as well as obtaining ex parte court orders to seize counterfeit goods in the United States.

Mr. Saunders has authored many articles on intellectual property issues that have been published in major legal publications including The New York Law Journal, The National Law Journal and The Trademark Reporter.
Cassandra Tam
Associate Attorney

ctam@peroffsaunders.com

Main: 646.898. 2030
Direct: 646.898.2053

Ms. Tam focuses on intellectual property with an emphasis on patent litigation. She has worked on cases in various technological areas, with a focus on information technology and biotechnology patents. her practice also involves trademarks as well as business litigation and corporate matters.

Prior to joining the firm, Ms. Tam interned at Black Duck Software, Inc. where she analyzed its corporate patent portfolio and evaluated open source software licenses. At a Boston IP firm, Ms. Tam gained patent prosecution experience by drafting patent applications involving chemical and mechanical processes, digital circuitry and internet systems. She also clerked for the Honorable Justice Frank Stock in the High Court of Hong Kong, Court of Appeal. Before entering the practice of law, Ms. Tam worked at the University of California School of Los Angeles Department of Pathology and Laboratory Medicine, Tissue Array Core Facility as a Staff Research Associate.

Practice Areas: Intellectual Property

Bryan Peroff
Associate Attorney

bperoff@peroffsaunders.com

Main: 646.898.2030
Direct: 646.898.2074

Mr. Peroff has experience in federal trademark availability, prosecution and litigation. His practice also includes general IP counseling and all aspects of legal brand protection.

Bryan graduated from the New York Law School and the University of Michigan. He is licensed by the New Jersey Bar and is certified for admission to the New York Bar (Admission expected in 2018). Bryan joined the Peroff Saunders legal team in 2017 and makes important contributions in all areas of the practice. He attends frequent trademark law conferences and enjoys the camaraderie and mentorship with partners and associates of the firm.

Michael Peroff
Associate Attorney

michael.peroff@peroffsaunders.com

Main: 646.898.2030
Mobile: 773 494 2946

Michael A. Peroff is an Associate Attorney in the Chicago office of Peroff Saunders, P.C. Michael earned his Bachelor Degree in History from Indiana University, with a particular focus on music history. He received his J.D. from The John Marshall Law School in Chicago, Illinois. He is currently a member of the Illinois Bar, as well as actively participates in intellectual property associations such as the International Trademark Association (INTA), Pharmaceutical Trade Mark Association (PTMG), and the Internet Corporation for Assigned Names and Numbers (ICANN). His focus is on the preparation and prosecution of trademark applications in the United States, as well as maintaining global trademark portfolios. Michael also focuses on domain name issues by participating in the Internet Committee for the INTA as well as ICANN's review of rights protection mechanisms for brand owners and domain name owners. In his spare time, Michael enjoys playing basketball and reading historical non-fiction books.
Hansley Mohan
Associate Attorney

hmohan@peroffsaunders.com

Hansley Mohan is an Associate Attorney in the New York office of Peroff Saunders, P.C. He earned his master's degree in political science from Long Island University and received his Juris Doctorate from Fordham University School of Law. His admission to the New York State Bar is currently pending.

Prior to joining the firm, Mr. Mohan worked at Lincoln Square Legal Services, Inc. where he practiced law under the supervising attorney's license and routinely performed trademark searches, counseled clients regarding their intellectual property rights, helped clients manage their intellectual property portfolios, and filed various forms with the USPTO. As an intern at another NYC IP firm, he also gained significant trademark prosecution experience drafting responses to USPTO office actions.

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...

FULL BIO »
Darren W. Saunders
Partner, New York Office

Mr. Saunders's practice is focused on intellectual property litigation, counseling and transactional matters. He has 30 years of experience in the areas of trademark, patent, copyright and unfair competition law. Mr. Saunders has extensive litigation experience, having litigated in numerous federal courts throughout the United States, as well as in the Trademark Trial and Appeal Board....

FULL BIO »
Cassandra Tam
Associate

Ms. Tam focuses on intellectual property with an emphasis on patent litigation. She has worked on cases in various technological areas, with a focus on information technology and biotechnology patents. her practice also involves trademarks as well as business litigation and corporate matters...

FULL BIO »
Bryan Peroff
Associate

Mr. Peroff has experience in federal trademark availability, prosecution and litigation. His practice also includes general IP counseling and all aspects of legal brand protection. Bryan graduated from the University of Michigan and New York Law School. He is licensed by the New Jersey Bar and is certified for admission...

FULL BIO »
Michael Peroff
Associate

Michael A. Peroff is an Associate Attorney in the Chicago office of Peroff Saunders, P.C. Michael earned his Bachelor Degree in History from Indiana University, with a particular focus on music history. He received his J.D. from The John Marshall Law School in Chicago, Illinois...

FULL BIO »
Hansley Mohan
Associate

Hansley Mohan is an Associate Attorney in the New York office of Peroff Saunders, P.C. He earned his master's degree in political science from Long Island University and received his Juris Doctorate from Fordham University School of Law. His admission to the New York State Bar is currently pending...

FULL BIO »
In the News
Representative Clients
Our Clients Say
I am responsible for overseeing the registration and protection of the world famous Rubik's Cube and Rubik's Brand intellectual property throughout the world. As such, I deal with over 30 legal companies in numerous jurisdictions. I have personally worked with Mark Peroff for several years and more recently with Darren Saunders and Cassandra Tam and can wholeheartedly recommend them and their company. They offer top level service, are personable, diligent and give excellent value for money compared to the big name legal offices.
David Kremer
President, Rubik's Brand Ltd
We are forever grateful to the Peroff Saunders legal team for making their valuable knowledge and experience in the field of trademark protection available to our organization.

I know we are in good hands.

Thomas Heymann
Executive Director, Sepsis Alliance
I have been working with Mark for over 20 years on all our trademark needs both domestically and internationally. He is personable, honest, fair, responsive, and has tremendous integrity alongside a remarkable breadth of knowledge and experience.

Ian Lirenman
C.E.O. Renature Skin Care, Inc.
Founder emerginC Skin Care
I take great pleasure in recommending the lawyers at Peroff Saunders who have been our intellectual property counsel for many years. Their high energy and experience always seems to provide creative and smart legal advice that addresses our legal needs and budget.

F. Gluck
General Counsel
info@peroffsaunders.com
(646) 898-2030
NEW YORK OFFICE
745 Fifth Ave, Suite 500
New York, NY 10151
Chicago office
1480 Techny Road
Northbrook, IL 60062