Edward M. Weisz

Co-Chair, Patent Prosecution Practice

New York

(212) 297-2660

(646) 588-1392

Edward practices in all areas of intellectual property law, most recently focusing his work on U.S. patent and trademark prosecution, counseling, and licensing.

Edward prosecutes patent applications and renders legal opinions and advises clients on infringement, freedom to operate, and validity issues in the electrical, mechanical, consumer products, product packaging, and business method arts concerning the following technologies: medical devices, communications systems, home furnishings, plumbing, table top goods, packaging, and telephony (optical and mobile communications) systems, analog and digital circuitry, microelectronics and semiconductor device design, optic and laser technologies (including amplification and optical routing), teleconferencing systems, RF amplification, spectroscopy, thermal dissipation devices, and manufacturing processes.

A substantial portion of Edward’s practice is devoted to trademark and copyright matters. He represents and assists clients in all aspects of securing trademark and copyright protection, in litigation, and in the enforcement and licensing of trademarks and copyrights. He has represented clients in pretrial proceedings and in oral and written arguments before federal courts and before examiners and various tribunals of the U.S. Patent and Trademark Office and other U.S. government agencies.

Edward earned his electrical engineering undergraduate degree from Rutgers University, College of Engineering in 1987 and his law degree from New York Law School in 1991.



Fashion Fights Heading to the Supreme Court

January 13, 2020

Edward Weisz was quoted in Women's Wear Daily discussing trademark lawsuits involving fashion.

Cozen O’Connor Advises Marquee Brands LLC on its Acquisition of the Martha Stewart and Emeril Lagasse Brands

May 02, 2019

The Cozen O’Connor team was led by intellectual property lawyers Lisa A. Ferrari and Edward M. Weisz. The Martha Stewart transaction is Cozen O’Connor’s second major Marquee Brands deal in the last five months.

Outside Counsel: Federal Trademarks Still Difficult to Obtain for Cannabis Companies

February 08, 2019

Edward Weisz discussed with Corporate Counsel how different strains of cannabis can be registered with the U.S. Patent and Trademark Office under the federal patent law which allows for patents to be places on plants.

Creative trademark strategies are essential for brands venturing into newly legalised U.S. marijuana markets

September 19, 2018

Ed Weisz, a member of Cozen O'Connor's Intellectual Property department, was quoted in World Trademark Review discussing cannabis brand partnerships.

Costco Appeal of $19M Tiffany Win Could Shift Trademark Law

August 29, 2018

Ed Weisz, a member of Cozen O'Connor's Intellectual Property department, discussed with Bloomberg Law his thoughts on Costco Wholesale Corp. trying to escape a $19.3 million judgment that it willfully deceived customers into believing they were buying Tiffany rings.

Citigroup Requests California Dispensary Citidank Stop Infringing on Trademark

April 19, 2018

Ed Weisz, a member of Cozen O'Connor's Intellectual Property department, discussed in Cannabis Dispensary Magazine about the trademark infringement disputes of Citigroup and a California dispensary.

Coat Maker Claims Vince Camuto Ruined its Business

September 27, 2017

Edward Weisz, a member of Cozen O'Connor's Intellectual Property department, discussed in the New York Post the alleged breach of contract of Vince Camuto.

Ed Weisz Discusses the Fine Lines of Fashion Trademarks in Women’s Wear Daily

May 25, 2016

Ed Weisz discusses the legal issues surrounding knockoff and illegal goods in Women's Wear Daily.

Edward Weisz Discusses New Software Systems Employed by the USPTO in FedScoop Article

January 09, 2015

In an article titled "Patent Office CIO Aims for Culture Change Amid Systems Updates," Edward Weisz, a member of Cozen O'Connor's Intellectual Property Department discusses the benefits of new software systems employed by the US Patent and Trademark Office.

Protecting Your Idea: Should You Patent It?

November 10, 2014

In an article titled "Protecting Your Idea: Should You Patent It?" Edward Weisz, a member of the Intellectual Property Department, discusses the timing of filing a patent application or a provisional patent application.

Ed Weisz quoted in All Things Digital

February 07, 2012

Ed Weisz quoted in All Things Digital

Ed Weisz quoted in The Wall Street Journal

November 14, 2011

Ed Weisz quoted in The Wall Street Journal


Kylie Jenner's 'Stormi' TM Battle Evinces A Celebrity Catch-22 [Law360]

March 13, 2020

Edward Weisz and Brianne Polito co-authored an article about Kylie Jenner filing various trademarks for her daughter.

Right of Publicity and Fair Use: Sure to Raise Eyebrows [New York Law Journal]

August 23, 2019

Edward Weisz and Brianne Polito wrote about companies using the name of a celebrity as a tie-in to a product seeking to connote a celebrity's characteristic or feature.

Why CBD-infused food and beverages could be ripe for a labelling class action [World Trademark Review]

June 13, 2019

Edward Weisz wrote about the legal landscape for food and beverage manufacturers looking to enter the hemp-based cannabidiol (CBD) market.

Guidance on Enforcing and Defending Intellectual Property Rights on Amazon [New York Law Journal]

March 22, 2019

Edward Weisz and Alanna Miller wrote about Amazon's process for managing infringement and counterfeit allegations.

USPTO Issues Revised Guidances Concerning 35 U.S.C. §§ 101 and 112 [Alert]

January 28, 2019

Tom Pontani, Ed Weisz, and Darren Mogil review the USPTO's new guidance for patent-eligible subject matter and claims using functional language to claim computer-implemented inventions.

Alerted states for cannabis brands [Intellectual Property Magazine]

November 30, 2018

Edward Weisz and Alanna Miller, both of Cozen O'Connor's Intellectual Property department, published an article in Intellectual Property Magazine, exploring the United States legal landscape for cannabis brands.

The Copyrightability of Apparel: From the Sidelines to the Supreme Court [Apparel Magazine]

September 08, 2017

Edward Weisz and Brianne Polito, both of Cozen O'Connor's Intellectual Property department, discuss the copyrightability of apparel in Apparel Magazine.

Protecting Your Inventions [MDT Medical Design Technology]

July 07, 2011

Protecting Your Inventions - MDT Medical Design Technology - For engineers and designers of medical devices, familiarity with U.S. patent rights is necessary to
protect inventions. Before filing an application, it is important to distinguish "prior-art" from
"novel" inventions.


  • New York Law School, J.D., 1991
  • Rutgers College, B.S.E.E., 1987
  • New Jersey
  • New York
  • United States Patent and Trademark Office
  • U.S. Court of Appeals for the Federal Circuit
  • U.S. District Court -- Eastern District of New York
  • U.S. District Court -- New Jersey
  • U.S. District Court -- Southern District of New York
  • American Bar Association
  • New Jersey State Bar Association
  • New York State Bar Association