Amster Rothstein and Ebenstein, LLP - Intellectual Property Law

Mark Berkowitz Senior Counsel


Direct 212 336 8063
Main 212 336 8000
Fax 212 336 8001

90 Park Avenue, 21st Floor
New York, NY 10016

Mark Berkowitz’s practice focuses on all aspects of intellectual property, with an emphasis on patent litigation. He litigates patents covering a wide variety of technologies including consumer electronics, semiconductors, e-commerce, power distribution and medical devices. He has assisted in all phases of patent cases from pre-suit investigations through appeal, including discovery, Markman briefing and dispositive motions.

A registered patent attorney, he also prepares and prosecutes patent applications and Requests for Reexamination before the U.S. Patent and Trademark Office. Mr. Berkowitz counsels clients with respect to a broad range of intellectual property matters and prepares opinions with respect to patentability, freedom-to-practice, infringement and validity.

Prior to attending law school, he worked as an electrical engineer at a global defense firm, gaining experience in circuit design, software development and manufacturing.

As an engineering student, he concentrated in image processing technology, the subject of a recent litigation embroiling all the industry participants that used a well-known image compression standard. Using his background, Mr. Berkowitz was centrally involved in the analysis of the prior art and the development of non- infringement positions.

Another major case involved two of the largest biomedical companies in a patent litigation over diagnostic testing instruments. He focused on a patent at the heart of the dispute and determined that the client’s product did not utilize the complicated statistical algorithm described in the asserted patent.

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Bar Admissions
  • New York, 2008
  • U.S. District Court for the Southern District of New York, 2008
  • U.S. Patent and Trademark Office, 2009
  • St. John’s University School of Law, Queens, New York, 2007, J.D.
  • State University of New York at Stony Brook, Stony Brook, New York, 2002, B.E., Electrical Engineering, Magna Cum Laude, Tau Beta Pi, Eta Kappa Nu
Awards and Honors
  • Rising Stars 2015-2018
Professional Experience
  • EDO Marine and Aircraft Corporation, Design Engineer, 2002-2004
Additional Languages
  • Hebrew

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