David Klingsberg is a retired partner of the firm. His practice focused on trial and appellate lawyer with particular experience in mass litigation and he has previously been national coordinating counsel and trial and appellate counsel in multidistrict product liability and antitrust litigations. His experience includes: (1) defending multidistrict product liability litigations involving individual and class suits concerning pharmaceutical and chemical products and medical devices (2) representing plaintiffs in a trial involving the Three Mile Island nuclear accident; (3) defending multidistrict antitrust litigation involving individual and class suits by retail pharmacies against pharmaceutical manufacturers; (4) representing plaintiffs in multidistrict antitrust and patent litigation. He has briefed and argued cases before the Judicial Panel for Multidistrict Litigation and before numerous state and federal courts including mass litigation related issues such as exclusion of expert testimony, class action certification and punitive damages.

Mr. Klingsberg chaired constituent firm Kaye Scholer’s Executive Committee for an eight year term (1997-2004). Before joining the firm, he was Chief Appellate Attorney and an Assistant United States Attorney in the Southern District of New York, an attorney with the United States Department of Justice, and law clerk to a federal judge.

Mr. Klingsberg has been a Visiting Lecturer at Rutgers School of Law from 2005 to 2010, and is an Adjunct Professor of Law at the University Miami School of Law, where he taught Complex Civil Litigation in 2013 to 2014.


Best Lawyers
Antitrust Law (2016)
Bet-the-Company Litigation (2016)
Commercial Litigation (2016)
Product Liability Litigation Defendants (2016)
Expert Guides
Product Liability (2014)
Legal Aid Society
Pro Bono Award (2008)
Outstanding Pro Bono Service (2005)
Public Leadership Award (2001)


  • LLB, Yale Law School, Yale Law Journal
  • BS, New York University, magna cum laude
  • New York
  • Supreme Court of the United States
  • Various US Courts of Appeals
  • Various US District Courts
  • *Not admitted to the Florida bar.
  • Fellow, American College of Trial Lawyers

  • Former Member, Board of Advisors, Legal Aid Society (1997–2005)

  • Past Chair, Antitrust and Trade Regulation Committee (1986-1989), Association of the Bar of the City of New York

  • Past Director, Legal Aid Society


Email Disclaimer