With 40 years of patent litigation experience, Jack has built a reputation as the “dean of the Delaware IP bar” (Chambers USA 2017).

Jack handles a unique mix of lead counsel, Delaware counsel, and co-counsel roles. Clients regularly turn to him in situations with a high risk of exposure that demand a thorough understanding of the complex legal and technical issues involved. Jack’s extensive experience includes pharmaceutical, medical product and biotechnology matters, as well as technology disputes involving computers, software and telecommunications. He has tried cases in various district courts and argued before the U.S. Court of Appeals for the Federal Circuit.

Jack has served as lead counsel for clients including Pfizer, UCB, Comcast, Thermo Fisher, Amgen, Agilent, and ResMed, among many others, in patent and trade secret cases. His clients include major companies such as Allergan, Gilead, Bayer, Becton Dickinson, AbbVie, Johnson & Johnson, Google, Intel, Lenovo, Dell, Analog Devices, PayPal, Activision, Electronic Arts, Take Two, and Pindrop.

Jack has received numerous awards and recognition, including having been named Delaware litigator of the year by Managing Intellectual Property and inducted to the Lawdragon Hall of Fame. Chambers USA peer-review sources report that he is “a titan of the Delaware Bar” (2021), the “top Delaware IP lawyer” (2018) and “in a class of his own” (2017).


Represented C.R. Bard, a unit of Becton Dickinson and Co., at trial of a patent infringement action relating to power injectable ports.

Represented Comcast in nine-patent infringement action, with successful result.

Represented Irving Consumer Products at trial in a patent infringement action concerning Through Air Dried (TAD) tissue.

Represented Next Caller, a subsidiary of Pindrop, at trial in a patent infringement action relating to call authentication solutions used by call centers.

Represented UCB at trials in Hatch-Waxman cases concerning UCB’s Vimpat® epilepsy drug and Neupro® rotigotine transdermal system.

Represented Pfizer at trials concerning Pfizer’s Xalatan®, Neurontin® and Norvasc® products in courts in Delaware, New Jersey, and Virginia, and in the Federal Circuit.

Represented Edwards Lifesciences Corporation at trials in patent infringement actions concerning transcatheter heart valve technology.

Represented API Industries in patent infringement cases in the district court, Federal Circuit, and the Supreme Court.

Represented Sonitor Technologies in a patent case directed at ultrasonic real time location systems in the district court and Federal Circuit.

Represented Shire and Sanofi-Aventis at trial in Hatch-Waxman litigation related to Firazyr®, Shire’s treatment for hereditary angioedema.

Represented Thermo Fisher Scientific in multiple patent infringement actions.

Represented C.R. Bard in a case against W.L. Gore concerning stent graft devices.

Represented Agilent Technologies Inc. in patent and trade secret cases involving nucleic acid arrays and high pressure liquid chromatography.

News & Insights

Honors & Recognitions

Chambers USA: America’s Leading Lawyers for Business, ranked in Delaware as a “Star Individual” for intellectual property, since 2008

IAM 250: The World’s Leading Patent Litigators, Number One Delaware Patent Litigator, 2011

IAM Patent 1000: The World’s Leading Patent Practitioners, ranked in Delaware, since 2014

Managing Intellectual Property, IP Star, 2014-2024; recipient of the “Outstanding Litigator of the Year - Delaware” award at the North America Awards, 2014-2019

Benchmark Litigation, Local Litigation Star in intellectual property litigation, since 2013

The Best Lawyers in America, listed in patent and intellectual property litigation work, since 1995; designated “Lawyer of the Year” in various Delaware categories, 2013, 2015-2016, 2024

Lawdragon Magazine, 500 Leading Lawyers in America; inducted to Lawdragon’s Hall of Fame – Litigators, 2023; listed on Lawdragon's 100 Leading AI & Legal Tech Advisors, 2024

WIPR Leaders, since 2016

Delaware Super Lawyers, listed in intellectual property litigation, since 2007; ranked number one on the “Top 10” list for Delaware, 2014-2016

Who’s Who Legal: Patents, listed, since 2014

Professional & Civic

American Bar Association

Delaware State Bar Association

Delaware State Bar Association Minority Job Fair (Chair 1993-1994, 2004-2005)

Federal Circuit Bar Association

Jewish Federation of Delaware (President 2013-2015)

Jewish Fund for the Future (Chair 2015-2022)

US Court of Appeals for the Third Circuit (Lawyers Advisory Committee (1998-2001))

US District Court for the District of Delaware (Intellectual Property Advisory Committee (1995-1996), Civil Justice Reform Act Advisory Committee (1992-1994), Local Rules Committee (1980-1983))


  • Law Clerk to The Honorable Walter K. Stapleton, US District Court for the District of Delaware, 1977-1979


Yale Law School, JD, 1977

State University of New York at Albany, BA, psychology, 1974


  • Delaware, 1979
  • US Court of Appeals for the Third Circuit, 1984
  • US Court of Appeals for the Federal Circuit, 1985
  • US Supreme Court, 1987

Received special recognition as a Star Individual for Intellectual Property in Delaware by Chambers USA.

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